Amazfit Balance 2 and Helio Strap: complete review of the subscription-free sports duo

The arrival of new devices can mark a before and after in the world of sports wearables, and Amazfit knows this well. With the launch of the Amazfit Balance 2 and the Helio Strap, the brand is doubling down on its commitment to an ecosystem focused on performance, recovery, and health., maintaining very clear hallmarks: good user experience, advanced metrics and an affordable price without mandatory subscriptions.

This new proposal puts on the table a real synergy between a high-performance multisport watch and a screenless smart strapDesigned for both athletes who want to get the most out of every workout and users who simply want to better understand their sleep, stress levels, and daily energy, the Amazfit Balance 2 and Helio Strap form a tandem where each piece makes sense on its own, but their benefits are maximized when used together.

Amazfit Balance 2 and Helio Strap: complete review, features, new features and differences between both devices, explained in detail, real-world usage examples and comparisons with alternatives such as Whoop or high-end watches from Garmin, Suunto or Coros.

In this article, you'll find all the key features of the Amazfit Balance 2 and the Helio Strap, how they complement each other, which type of user they're designed for, what advantages they offer over their rivals, important technical specifications, and the purchase options available in Spain. If you're unsure whether to buy just the watch, just the strap, or the complete bundle, here's a comprehensive guide to help you make the best decision.

A complete sports ecosystem: Amazfit Balance 2 and Helio Strap

Amazfit has understood that athletes and demanding users are looking for much more than a simple step or calorie count. The brand's strategy with the Balance 2 and the Helio Strap is to build a training and recovery ecosystem. in which each device fulfills a specific function and their data are combined within the Zepp app to offer a global picture of your physical condition.

El Amazfit Balance 2 Act like central core of the systemThis is the watch you wear during training, competitions, and in your daily life. From it, you control sports modes, maps, contactless payments, notifications, and a significant portion of your health metrics. It's a high-end multisport smartwatch with a clear focus on athletic performance.

For its part, the Helio Strap It is designed as silent and continuous deviceA screenless strap you wear all day (and especially at night) to record biometric data with minimal distraction. It's ideal if you don't want to sleep with a bulky watch on your wrist, if you can't wear a smartwatch during certain sports (like some tennis matches or contact sports), or if you simply prefer an ultralight solution for measuring rest, stress, and recovery.

The most interesting thing about the ecosystem is the Full integration with the Zepp appAll data on physical activity, training, sleep, recovery, and stress are centralized on the same platform, cross-referenced, and converted into easy-to-interpret metrics, such as... BioCharge score, which attempts to simplify your available energy level into a single number.

Unlike other systems such as Whoop, where it is essential to pay a monthly fee to access advanced metrics, Neither the Amazfit Balance 2 nor the Helio Strap require a subscriptionYou pay for the device once and have full access to data, sports modes, and recovery features from day one, with no recurring costs or app locks.

Although both devices can be purchased and used separately, It is in combined use where they really make a differenceUsing the Helio Strap as a continuous monitor for heart rate, sleep, HRV, and stress, and the Balance 2 as a training watch with GPS, maps, and advanced modes, allows for a much more complete record of:

Total training load (not only during the session, but also the subsequent impact).
Actual recovery statusintegrating sleep, naps, stress peaks, and heart rate variability.
Level of accumulated fatigueto know when to push hard in a tough session and when to ease off the accelerator.

This combination makes the Amazfit Balance 2 + Helio Strap a very serious alternative for users who were considering switching to subscription ecosystems like Whoop or high-end watches from Garmin, Polar, or Suunto, but are looking for something more economical and without monthly fees.

Premium design, durability and comfort for everyday use

The Amazfit Balance 2 was created with high-level athletes in mind, but with a design that fits perfectly into everyday life.It's not just a watch for training: it also looks good with casual clothes or even in office environments, thanks to its metal bezel and the different straps available.

Its main hallmark is the 1,5-inch AMOLED touchscreen with sapphire crystalwhich offers several key advantages:

Maximum brightness up to 2.000 nitswhich guarantees excellent visibility outdoors, even in full sunlight.
Extremely high sharpness and contrastIdeal for reading data at a glance while running, cycling, or skiing.
Scratch protection Thanks to the sapphire crystal, it's especially useful if you train in the mountains, at the gym with metal equipment, or in contact sports with a risk of impacts.

In terms of dimensions, the Balance 2 offers a weight of only about 42 grams without the strap (approximately 50 grams with a lightweight nylon strap). This places it in a very comfortable range for long workouts, so it's barely noticeable on the wrist despite its robust construction.

Combining aluminum bezel and fiber-reinforced polymer case It allows for a balance of durability and lightness. In terms of design, Amazfit has opted for clean lines and a side crown that facilitates navigation through the interface, especially useful when training with gloves or sweaty hands.

In addition, the brand has incorporated sustainability criteria in packaging and some manufacturing processesUsing recyclable materials, eco-friendly inks and anodized aluminum to reduce environmental impact without sacrificing quality.

In terms of durability, the Amazfit Balance 2 offers:

10 ATM water resistanceSuitable for pool swimming, open water, intense water sports and even recreational diving depending on the integrated diving modes.
Military-grade strength certification (MIL-STD-810G) in aspects such as extreme temperatures, shocks, vibrations and humidity.

These factors make it suitable not only for road or gym runners, but also for trail runners, skiers, hikers and adventure sports enthusiasts who need a watch that can withstand harsher conditions.

Autonomy and internal hardware: Zepp OS 5 and a battery that lasts for several days

One of the points where Amazfit usually excels is battery life, and with the Balance 2 it repeats the formula. The watch promises up to 21 days of typical use on a single chargeThis figure may vary depending on actual GPS usage, always-on display, and notifications, but it puts it well above most smartwatches with AMOLED screens.

In GPS training mode, it offers:

Up to 39 hours of use with GPS enabled in standard mode, more than enough for marathons, one-day ultras and very long training sessions.
Up to 33 hours with dual-band satellite, ideal for challenging terrain or cities with tall buildings where precision is a priority.
Up to 67 hours in low power GPS mode, sacrificing some detail to prioritize battery life on multi-day adventures.

Energy management is closely linked to the new ZeppOS 5Amazfit's own operating system. This version introduces several improvements that are noticeable in both fluidity and customization options:

Cleaner and faster interfacewith smooth animations and improved organization of training and health menus.
Up to six configurable font sizes, very useful for adapting readability to different situations (for example, larger letters in intense training).
Custom button and screen locks by sportso that you can avoid accidental heartbeats while cycling, swimming or trail running.
Compatibility with mini-apps that expand functions (tools, utilities, additional integrations, etc.).
Voice control with Zepp Flowwhich allows you to manage certain settings, record repetitions in strength training, or perform actions without touching the screen.

All of this is accompanied by a dual-band positioning chip compatible with six GNSS systems (including GPS and Galileo), which improves accuracy in challenging environments and maintains low power consumption. Users with extensive experience in sports watches have found that the GPS accuracy is very high even on wooded trails or in demanding urban areas.

In terms of connectivity, the Balance 2 allows:

Pair external sensors via Bluetooth (power meters, heart rate monitors, cadence sensors, compatible cycle computers, etc.).
Make and receive phone calls via Bluetooth thanks to its integrated microphone and speaker.
Respond to messages from apps like WhatsApp using voice-to-text dictationprovided the mobile is linked and a compatible version of Android is used (Android 7 or higher is required for this function).

Multisport functions, maps, and advanced training modes

The Balance 2 works practically like a personal trainer on your wristwith over 170 sports modes covering everything from the most common disciplines to highly specific and trending sports. These include:

Correr (outdoors, treadmill, trail, track running, etc.).
Cycling (road, MTB, indoor, urban cycling).
Swimming (swimming pool, open water, triathlon, combined profiles).
Strength training with automatic detection of exercises, repetitions and rest times.
HIIT and interval training.
racket sports such as tennis or padel.
Pickleball, which is gaining popularity and already has a specific profile.
winter sports such as skiing or snowboarding.

Among the most notable new features are several advanced profiles that are rarely seen so fully implemented in a watch of this price range.

Dedicated HYROX modes

HYROX has become a benchmark in the fitness world, and Amazfit is official timekeeper of this disciplineBalance Sheet 2 includes three specific HYROX modes, which allow:

Plan structured training sessions with intervals, stations, heart rate zones, and transition times.
Accurately record performance in each block (for example, running + indoor cross-country skiing, sledding, lunges, etc.).
Analyze later in the Zepp app where you performed best, where you lost the most time, and what your cardiovascular response was at each station.

This makes the Balance 2 one of the few watches that offer Native and full support for HYROX, ideal for hybrid athletes who combine strength and endurance.

Golf profile with more than 40.000 courses

For golfers, the Balance 2 incorporates a very complete golf mode including:

Access to over 40.000 golf course maps worldwide.
Real-time positioning inside the hole to show the distance to the flag.
Visualization of obstacles such as water, bunkers, and other elements of the course.
Integrated scoring during the round.
Feedback on the swing, with metrics such as plane and tempo.

In this way, players can do without a specific golf watch and keep a single device that is valid for work, daily life and the course.

Support for diving and water sports

The Balance 2 takes water sports a step further by integrating Dedicated profiles for freediving and scuba divingwith metrics that are very unusual in watches of this range:

NDL (No Decompression Limit) or no-decompression limit, which helps to know how long you can stay at a certain depth without exceeding risk thresholds.
PPO₂ (Partial Pressure of Oxygen), key to managing gas mixtures and underwater safety.
EAN / EAAN (Enriched Air Nitrox), for enriched air dives.
Detailed record of depth, immersion time and water temperature.

It is not intended to replace a professional dive computer, but it is a A very useful tool as a complement or as a secondary device For freediving or recreational dives up to about 45 meters, with configurable alerts and a historical record of your dives in the Zepp app.

Running, trail running, and navigation with free maps

For runners and trail runners, the Amazfit Balance 2 offers:

Advanced VO₂ Max monitoringTraining load, aerobic and anaerobic effort.
Performance scores and estimated recovery time after demanding training sessions.
Integrated training plans for different distancesadaptable to your level and goal.

In addition, the watch allows Download free maps for offline navigationThis is becoming a key differentiator in this price range. From the Zepp app, you can select specific areas and transfer maps to the watch via Wi-Fi. Once loaded, you can:

Create routes in the app and follow them on the watch with turn indicators.
Upload GPX files of routes created on other platforms.
View the map with smooth lines, street names, and trailsHowever, some advanced users point out that in certain cases the paths are displayed in the same color as the roads, something that Amazfit is already polishing in updates.

Aspects such as the map panning and scrolling capabilitieswhich is smoother than in previous models and some competing watches. It is true that the Map transfer may take several minutes depending on the file size, but once completed the user experience is solid.

Health and recovery monitoring: BioTracker 6.0 and BioCharge Score

Both the Balance 2 and the Helio Strap use the BioTracker 6.0 optical sensorThe latest generation of Amazfit sports biometrics. This sensor is capable of measuring with high precision:

Continuous heart rate at rest and during exercise.
Blood oxygen saturation (SpO₂).
Heart rate variability (HRV/HRV), key to estimating the state of the autonomic nervous system.
stress levels and approximate mental workload.
Sleep quality and phases (light, deep, REM).
Nighttime breathing and possible anomalies.

The big news is BioCharge scorean algorithm that integrates all these parameters to offer a real-time body energy indicatorBioCharge takes into account:

night sleep (duration, depth and continuity).
Naps of more than 20 minutes, which add to the overall recovery.
Physical effort accumulated during the day.
Stress and variations in HRV.

The result is a metric that helps you understand if your body is ready for an intense workout or if it's better to prioritize a gentle session or rest. BioCharge does not replace personal judgment, but it provides an objective reference. based on data that, in the long term, can help you avoid overtraining and injuries.

Sleep monitoring is another of the system's strong points. Both the watch and the Helio Strap can:

Automatically detect when you fall asleep and when you wake up, with considerable accuracy in most cases.
Analyze the time spent in each sleep phase and the stability of breathing.
Record nighttime awakeningsHowever, some advanced users point out that certain micro-awakenings may not be detected if there is no noticeable movement.

All this data is displayed in the Zepp app with charts, long-term trends and recommendations to improve sleep hygiene, stress management, and training planning.

Helio Strap: the smart strap without a screen for measuring recovery

La Helio Strap It introduces a very different proposal compared to the usual bracelets: It has no screen, buttons, or notifications.It is, in essence, a very lightweight sensor placed on a textile strap that focuses on what's important: continuously collecting data without drawing attention.

Weighs only about 20 gramsThis makes it barely noticeable, both day and night. The sensor is removable and housed in an adjustable textile strap, designed to be comfortable even while sleeping. For many people who can't stand sleeping with a watch on their wrist, this solution is much more tolerable.

Lacking a screen, the Helio Strap syncs in the background with the Zepp appwhere you can find all the data. This offers several advantages:

No distractions during training, especially useful in sports where you don't want to see notifications or where wearing watches is not allowed.
Lower battery consumption, as there is no panel to power.
Greater discretion, since it goes unnoticed at first glance.

In terms of battery life, the Helio Strap offers:

Up to 10 days of standard use.
Up to 25 days in low power modereducing the sampling frequency of certain parameters.

Charging is done by means of a magnetic base included, quickly and easily.

On a functional level, Helio Strap stands out for:

Continuous heart rate monitoring, with high precision thanks to its position and stability on the wrist.
Recording of HRV, stress, sleep, and oxygen saturationJust like a watch, but with the added benefit that in many cases you'll wear it for longer periods.
27 different training modes accessible from the Zepp app, with a special focus on:

Running, walking, and cycling.
Strength training with tracking of repetitions, sets and rest periods.
HIIT, yoga, and indoor gym workouts.
HYROX Mode with specific reference tools.

The Helio Strap detects training automatically In activities like running, walking, rowing, or using an elliptical trainer, although you can also manually start any profile from the app. In strength training, HIIT, or intense intervals where the optical wrist sensors of watches tend to struggle, using the Helio Strap as an external heart rate monitor can offer... more stable and accurate readings.

The Helio Strap can be used both as a standalone device linked only to the Zepp app , the in combination with an Amazfit smartwatch (Balance 2, Helio Ring, or other compatible models). All of this reinforces its role as an affordable, subscription-free alternative to Whoop-type systems, with the advantage that it integrates natively with Amazfit watches and doesn't force you to change ecosystems.

Real-world user experience and small details to keep in mind

Beyond the technical specifications, the combination of the Amazfit Balance 2 and Helio Strap has been tested by users with many years of experience with sports watches from brands like Garmin, Polar, Suunto, and Coros. Several interesting points emerge from these tests:

Build qualityThe Balance 2 is perceived as a clear improvement over the original Balance, with better materials and a more premium feel on the wrist.
ScreenThe AMOLED panel is highly visible even on sunny days and open trails, with more than enough brightness.
LightnessDespite improved materials, the weight remains manageable, making it comfortable for long runs and daily use.
GPS and mapsThe GPS accuracy is very good, and the routing on the device to create routes directly from the watch works quickly in most situations.
Training alerts and notificationsThe addition of sound alerts in addition to vibration helps to avoid missing autolaps or activity resumptions at traffic lights or aid stations in ultras.

On the less positive side, some advanced users point out areas for improvement that Amazfit is already addressing with updates:

Slow map transfer when it comes to very large files, something that is also common among other manufacturers.
Wrist gesture sensitivity to turn on the screen during training, which may sometimes require repeating the movement.
Altitude gain somewhat overestimated on certain routes, an issue in which Amazfit continues to adjust barometric algorithms.
Translations that can be improved in some languages and menus, with small details that will be refined.

Even with these nuances, the general feeling is that Amazfit is listening to the community more than ever., releasing relevant firmware updates, adding requested features (such as improved maps, new alerts, or algorithm adjustments) and maintaining extended support for its models.

Integration with Zepp, third-party apps, and smart features

The value of the Amazfit Balance 2 and the Helio Strap multiplies when you take advantage of the integration with the Zepp app and with other sports platforms.

From Zepp you can:

View all your training, health, and recovery data in one unified dashboard.
Configure data fields, alerts, sport displays, and specific modes of the clock.
Install mini-apps and additional tools to extend the device's functions.
Sync with third-party services such as Strava, Apple Health, TrainingPeaks, Komoot, and other popular platforms.

In addition, Balance Sheet 2 includes:

Contactless payments with Zepp Pay, compatible in several European countries and backed by Curve as an intermediary in compatible countries and banks.
Membership card storage holder (gym, transport, access, etc.) on the watch; they can be associated up to 20 cards according to the manufacturer.
Play music and podcasts without carrying your mobile phone, thanks to:

Internal storage for MP3 files that you can transfer from your phone.
Streaming music cachewhere the watch can store content played from the mobile phone in memory to listen to it later offline.
Automatic podcast download via WiFisaving the RSS feed in the app so that the watch receives the latest episodes.

This set of features makes it a truly autonomous watch For training: you can go for a run without your phone, with music or podcasts loaded, maps downloaded, contactless payments active, and all performance metrics working only with the watch.

No fees or subscriptions: everything included from day one

One of the most differentiating aspects compared to direct rivals is the total absence of mandatory subscriptionsNeither the Amazfit Balance 2, the Helio Strap, nor the Zepp app require recurring payments to unlock:

Advanced recovery metrics such as BioCharge, HRV, stress and sleep analysis.
Full sport modes such as HYROX, diving, golf, or strength training.
Downloadable Maps for offline browsing.
Synchronization with other platforms and historical data storage.

This contrasts with solutions such as Whoopwhere the hardware is usually tied to a monthly fee required to access the metrics that truly make the product attractive. In the case of Amazfit, You pay for the device and enjoy all the features from day one.which in the medium and long term represents a very significant saving.

Prices, versions and purchase options in Spain

Both devices are available in the Spanish and European markets with clearly competitive prices in relation to their featuresPlease note that official prices may vary depending on the version, distributor, and current promotions. Among the most relevant references and observations:

Amazfit Balance 2There are discrepancies depending on the source and the market; in some official listings and distributors the price is around 299 EurosWhile at the initial launch some retailers offered the standard version starting from 199 Euros and the edition with a leather strap around 249 EurosAlways check the seller and the version.
Amazfit Helio Strap: depending on promotions and packages, its listed price has varied between 99 and 149 euros in different markets and offers.
Amazfit Balance 2 + Helium Strap PackIt is usually offered at a discount compared to buying them separately; observed pack prices have been around 379–379,99 euros in launches and promotions.

The official launch in some regions occurred from the July 15th and it was accompanied by launch offers, such as discounts of 15% during the first week And gifts for the first units sold on the official website. You can find them not only at Amazfit.es, but also on Amazon, in specialty stores, and at major sports technology retailers.

In terms of compatibility, both the Balance 2 and the Helio Strap work with Android and iOS through the Zepp app, with very reasonable system requirements for most current mobile phones.

For those looking for a unique, lightweight, and very complete device for training and daily use, the Balance 2 alone is already a very solid option.If you also truly care about optimizing your rest, controlling fatigue, and tracking every minute of your recovery, the combination with the Helio Strap It becomes a hard-to-match combination in this price range and without additional fees.

Together, the Amazfit Balance 2 and Helio Strap represent a a leap in quality in the brand's catalog And it's an important step towards competing head-to-head with established manufacturers in the sports and health sector. For many users who train seriously, run frequently, or combine strength and endurance, this pair could be the turning point they've been missing, allowing them to gain more context for their data, train smarter, and recover better, all while staying within a reasonable budget.