| General | |
|---|---|
| Manufacturer | Amazfit (Zepp Health) |
| Type | Smart ring for recovery and sleep tracking |
| Series | Helio |
| Released | 2024 |
| Price at launch | GBP 269 |
| Predecessor | None (first Helio Ring) |
| Successor | Helio Ring 2, confirmed for H2 2026. |
| Sizes | Size 8, 10 and 12 |
| Colours | Titanium |
Specifications and features as at launch.
Jump to: Expert opinion | Specifications | Battery life | Features | Data fusion | Quick answers | Further reading
Expert opinion
The Helio Ring is a sleep and recovery tracker aimed at athletes who already own an Amazfit watch and do not want to wear it overnight. It reads heart rate, blood-oxygen, stress and skin temperature from the finger, and adds an EDA sensor for emotional state tracking. There is no subscription requirement for the core metrics, which separates it from Whoop.
The ring is titanium, under 4g, and 2.6mm thin, so it is comfortable to sleep in. Its readiness score merges with data from a paired Amazfit watch. Battery life of up to four days is short by smart ring standards, and early buyers reported occasional connection drops that require a factory reset. The ring is a companion device, not a standalone tracker, and its value depends on already being inside the Zepp ecosystem.
Amazfit Helio Ring
Health & recovery ring
Specifications
| Physical | |
|---|---|
| Width | 8mm |
| Thickness | 2.6mm |
| Weight | Size 8: 3.65g. Size 10: 3.75g. Size 12: 3.82g |
| Sizes | 8, 10, 12 |
| Body material | Titanium alloy outer ring, resin inner ring |
| Water rating | 10 ATM (ISO 22810) |
| Sensors | |
| Heart rate | BioTracker PPG (1 dual-colour LED + 2PD) |
| Other sensors | Temperature, EDA (electrodermal activity), 3-axis acceleration, 3-axis gyroscope |
| © the5krunner. Link required. | |
| Connectivity and support | |
| Connectivity | Bluetooth Low Energy |
| Supported devices | Android 7.0 and above, iOS 14.0 and above |
| Application | Zepp App |
Battery life
| Item | Figure |
|---|---|
| Typical use | Up to 4 days |
| Battery capacity | Size 8: 16.5 mAh. Size 10: 18.5 mAh. Size 12: 20.5 mAh |
| Charging | Wireless, approximately 1 hour 40 minutes |
| © the5krunner. Link required. | |
The four-day figure is based on heart rate and stress monitoring at 10-minute intervals, assisted sleep monitoring on, and blood-oxygen and sleep breathing quality off. Enabling continuous blood-oxygen or automatic emotion monitoring shortens battery life.
Features
Recovery and health
- Readiness score, merging ring and paired-watch data
- Recovery time
- Sleep score, sleep stages including REM, daytime naps, sleep breathing quality
- Sleep resting heart rate and sleep HRV
- Continuous heart rate, blood-oxygen and stress monitoring
- EDA emotion monitoring, combined with HRV
- Skin temperature
- PAI health assessment
- Heart rate recovery
- Menstrual cycle tracking
Training
- Four sports modes
- VO2 Max, training load and training effect
- Race predictions for 3km, two-mile, three-mile, 10km, half marathon and marathon
- Zepp Fitness and Zepp Aura memberships, free for Helio Ring users on a trial, extended by subscription in select regions
Connect
- Sync to Strava, adidas Running, Komoot, Relive, Google Fit, Apple Health
- Wireless charging
Data fusion
The Helio Ring merges its recovery data with a paired Amazfit watch, so readiness draws on both devices. Amazfit lists data fusion support across the Performance, Adventure, Lifestyle, Essential and Zepp watch series, including the Cheetah Pro, T-Rex Ultra, T-Rex 2, T-Rex Pro, T-Rex, Balance, Active, Falcon, and the GTR and GTS ranges, alongside Bip models and Zepp Z and E. The ring works as a background tracker while the watch handles workouts, with all data presented together in the Zepp App.
Quick answers
When was the Amazfit Helio Ring released?
Amazfit released the Helio Ring in 2024. The launch price was GBP 269.
Does the Helio Ring need a subscription?
No, Helio Ring has no subscription requirement for its core metrics. Zepp Fitness and Zepp Aura memberships are free on a trial and can be extended by subscription in select regions.
Is the Helio Ring waterproof?
Helio Ring has a water rating of 10 ATM.
What is the Helio Ring battery life?
Amazfit rates Helio Ring at up to 4 days of typical use. It charges wirelessly in approximately 1 hour 40 minutes.
What sizes does the Helio Ring come in?
Helio Ring comes in sizes 8, 10 and 12, weighing 3.65g, 3.75g and 3.82g. It is 8mm wide and 2.6mm thick, with a titanium alloy outer ring.
Does the Helio Ring work with iPhone?
Yes, Helio Ring works with iOS 14.0 and above, as well as Android 7.0 and above, through the Zepp App.
Further reading
- Amazfit Helio Ring 2 confirmed for H2 2026
- Amazfit watch specifications
- Release Radar: upcoming watches
Small things I always use
- Garmin 90-degree charging adapter: Charges your Garmin from any USB-C cable. Essential when travelling. I use one.
- Body Glide: The blue anti-chafe stick swimmers and runners carry. I use it.
- Speedo earplugs: Fewer ear infections and no cold-water dizziness. I use them.
- Dryrobe Advance: My winter changing robe for open-water swims. I use one. A cheaper option is the AONYIYI changing robe.
- Maurten: Race fuel that stays easy on the stomach. I use them.
- Beet It Sport nitrate shots: Beetroot shots I take in the days before a race. I use them.
- Garmin charging puck: The quickest way to top up before a session. I use one.
- Injinji: Toe socks that stop rubbing, so you run more. I use them.
- Ultimate toe protectors: Stop black toenails on long runs. They work. I use them.
- Compressport R2 v2 calf sleeves: My calf sleeves of choice. I use them.
- Cellucor C4: My pre-workout before hard sessions.
- TPU tubes: Schwalbe Aerothan, Tubolito and Pirelli SmarTube. Light, tiny spares. I use all three.
- G8 insoles: Adjustable insoles that are good. I use them.
- Cycplus Cube: A 97g electric pump that gets a road tyre rideable in two minutes. I carry one. 5% off with code THE5KRUNNER.
Watches and sensors
- Polar H10: My daily driver for waking HRV.
- Polar Verity Sense: My backup arm-worn HR sensor.
- Nomad bedside charger: Charges my iPhone and Apple Watch overnight. I use it, and many of their bands.
- Train.Red: The best muscle oxygen sensor I’ve used.
- Tymewear: Accurate heart rate and reliable ventilatory zones. I use it to pace endurance rides over an hour.
- Garmin Forerunner 970: A pro-grade triathlon watch. I use this.
- Apple Watch Ultra 4: My daily smartwatch. No phone needed on rides.
- Garmin Fenix 9 Pro: I’ve just bought one.
On the bike
- Continental GP5000 for everyday riding, and Aero 111 on the front for special occasions.
- Helmets: Specialized S-Works Evade 3 for road riding, and Rudy Project Wing for TT-style races. I use both.
- Ravemen FR300: A front light that mounts under your Garmin or Wahoo. I use one.
- Wahoo TRACKR Radar: I use it on one bike and Varia on the other. They perform the same.
- Garmin Varia RTL515: Radar that warns you of cars from behind. I use this model.
- Wahoo ELEMNT Roam 3: The bike computer that’s easy to use. I use mine on most rides.
- Favero Assioma Pro RS2: Accurate power pedals that swap easily between bikes. I use this model.
Home and indoor training
- NPE Runn: Makes my basic treadmill smart, sending more accurate speed and distance to my watch and Zwift. I use it.
- Google Wifi: Keeps Zwift connected in my pain cave. I use it.
- Apple TV 4K: Zwift on the big screen. I use two.
- Google Nest Doorbell (wired, 2nd gen): My video doorbell, running in both Google Home and Apple Home. I use it.
Health, recovery and sleep
- FreeStyle Libre 3 Plus: Shows how my blood sugar responds to diet.
- hDrop: Measures my sweat loss in summer and indoors.
- Fourth Frontier Zone: Checks my heart under load in hard sessions.
- Oura Ring 5: My partner’s recovery tracker of choice.
- Eight Sleep: A cooling mattress cover my partner and I use nightly.
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