Amazfit
Active vs Balance 2
Size, specs & wrist fit compared
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Which one fits you
On wrists narrower than about 50mm, the Active is the safer pick — it stays proportionate down to roughly 38mm, where the Balance 2 starts to hang over the edge. Above 50mm both sit cleanly, and the Balance 2 gives you more presence.
The Balance 2 wears larger than the Active (47.4mm vs 42.36mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Active is the slimmer of the two (10.75mm vs 12.3mm), so it slides under a cuff more easily.
On the wrist the Active feels lighter (27g vs 43g, case only).
The Active is thinner than 87% of the 42mm watches we track and the Balance 2 than 81% of the 47mm ones — so both wear flatter than their widths suggest.
The Balance 2 is 5mm wider, 11.5mm longer, 1.6mm thicker and 16g heavier than the Active.
Active
Balance 2
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Amazfit
Active
Amazfit
Balance 2
Watch Fit Tool
For sports watches, lug-to-lug (L2L) is what matters most — it decides whether a watch overhangs your wrist. Bulky is fine; overhang is not.
Measure at the point where you wear your watch — typically just below the wrist bone.
Flat width — lay your arm on a table, palm facing up, and measure straight across the top of your wrist with a ruler. Bone to bone; do not follow the curve down the sides.
Around — wrap a tape measure snugly round the wrist. No tape? Wrap a strip of paper, mark the overlap and hold the strip against a ruler.
Width ≠ circumference. They are different numbers — around 170mm is about 64mm across — so set the toggle to whichever one you actually measured before you type it in.
Amazfit Active
Case 35.9mm · Lug-to-lug 35.9mm · Thickness 10.8mm · 27g
Understated
35.9mm on a 55mm wrist
Well inside your wrist on every measurement — you have room to go a size up if you want more presence.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 35.9mm, so you could go bigger.
Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.
- 1. Flat width — arm flat on a table, palm up. Measure straight across the top of the wrist, bone to bone, ignoring the curve down the sides.
- 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Leather: Attaches at the lugs, so the case back rests on your skin. Thins and softens with wear. Typical figures, not this model’s own.
Show the measurementsHide the measurements
- Across the wrist9.6mm spare each side
Comfortable, with visible skin either side.
- Off the wrist10.8mm off the skin
Normal sports-watch height for a wrist this size. (10.8mm case, back against the skin)
- How it seats~2.4mm under the rim
Sits flat on the wrist with contact right across the case back.
- Weight on the wrist27g
Light enough to forget you have it on. (0.5g per mm of wrist)
Amazfit Balance 2
Case 47.4mm · Lug-to-lug 47.4mm · Thickness 12.3mm · 43g
Sweet Spot
47.4mm on a 55mm wrist
Across the wrist it works — 3.8mm spare each side — but wide enough that the edge of the case back lifts clear of the skin.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 47.4mm.
Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.
- 1. Flat width — arm flat on a table, palm up. Measure straight across the top of the wrist, bone to bone, ignoring the curve down the sides.
- 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Leather: Attaches at the lugs, so the case back rests on your skin. Thins and softens with wear. Typical figures, not this model’s own.
Show the measurementsHide the measurements
- Across the wrist3.8mm spare each side
Fills the wrist without reaching the edge.
- Off the wrist12.3mm off the skin
Normal sports-watch height for a wrist this size. (12.3mm case, back against the skin)
- How it seats~6.3mm under the rim
Wide enough that the edge of the case back lifts clear of the skin.
- Weight on the wrist43g
Light enough to forget you have it on. (0.8g per mm of wrist)
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist.
- Amazfit Active42.4mm × 35.9mm · 10.8mm thick
- Amazfit Balance 247.4mm · 12.3mm thick
3D preview
Active vs Balance 2 on a wrist
Sized to your own wrist, turned any way you like.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
Battery life compared
Furthest apart in Battery Saver mode, where the Active lasts 10.7× as long as the Balance 2 (30 days against 2.8 days).
ActiveBalance 2
Battery Saver
720 hours67 hoursSmartwatch
14 days21 daysTraining
240 hours240 hoursGPS
16 hours33 hours
Specifications
The short version
11 key specs| Spec | AmazfitActive | AmazfitBalance 2 |
|---|---|---|
| Case Width | 42.36mm | 47.4mm |
| Lug-to-Lug | 35.9mm | 47.4mm |
| Thickness | 10.75mm | 12.3mm |
| Weight | 27g | 43g |
| Shape | Rectangle | Circular |
| Water Resistance | 5 ATM | 10 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.75 inches | 1.5 inches |
| Battery life | 14 days | 21 days |
| Released | 2023 | 2025 |
Every specification
118 specs| Spec | Amazfit Active | Amazfit Balance 2 |
|---|---|---|
| Design | ||
| width | 42.36 | 47.4 |
| height | 35.9 | 47.4 |
| volume | 16.35 cm³ | 27.64 cm³ |
| weight | 27 g | 43 g |
| thickness | 10.75 | 12.3 |
| ATM rating | 5 ATM | 10 ATM |
| resolution | 390 x 450 px | 480 x 480 px |
| screen size | 1.75 inches | 1.5 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 341 ppi | 323 ppi |
| width of band | 20 mm | 22 mm |
| water resistance | Water resistant | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | No |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | Yes |
| has branded damage-resistant glass | No | No |
| waterproof depth rating | — | 45 m |
| Ingress Protection (IP) rating | — | IP68 |
| Battery | ||
| charge time | 2 hours | — |
| battery life | 14 days | 21 days |
| battery power | 300 mAh | 658 mAh |
| has wireless charging | No | No |
| has a removable battery | No | No |
| battery life with GPS on | 16 hours | 33 hours |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| battery life in training mode | 240 hours | 240 hours |
| battery life in power save mode | 720 hours | 67 hours |
| Sensors | ||
| has GPS | Yes | Yes |
| has a compass | Yes | Yes |
| Has a barometer | No | Yes |
| has a gyroscope | No | Yes |
| Has a cadence sensor | No | No |
| has an accelerometer | Yes | Yes |
| Monitors perspiration | No | No |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | Yes | Yes |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| release date | 2023-10-27 | 2025-06-24 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | No |
| warranty period | 1 years | 1 years |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| has HRV tracking | Yes | Yes |
| internal storage | 0.25GB | 32GB |
| Has notifications | Yes | Yes |
| Has ECG technology | No | No |
| Locates your phone | Yes | Yes |
| has fall detection | No | No |
| has voice commands | No | Yes |
| Acquires GPS faster | Yes | Yes |
| Has vibrating alerts | Yes | Yes |
| number of microphones | 1 | 1 |
| shows readiness level | Yes | Yes |
| Can be used to answer calls | Yes | Yes |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | No | No |
| has fast/slow heart rate notifications | Yes | Yes |
| Has a built-in camera remote control function | No | Yes |
| measures VO2 max | — | Yes |
| has a front camera | — | No |
| Connectivity | ||
| has NFC | No | Yes |
| supports ANT+ | No | No |
| supports Wi-Fi | No | Yes |
| supports Galileo | No | Yes |
| Bluetooth version | 5.2 | 5.2 |
| has a cellular module | No | No |
| Is compatible with iOS | Yes | Yes |
| Is compatible with Android | Yes | Yes |
| Wi-Fi version | — | Wi-Fi 4 (802.11n) |
| Miscellaneous | ||
| Has passcode | Yes | Yes |
| Has auto pause | Yes | Yes |
| Is compatible with Windows | No | No |
| Is compatible with Mac OS X | No | No |
| has an external memory slot | No | No |
| Compatible with smart scales | Yes | Yes |
| has a battery level indicator | Yes | Yes |
| has a socket for a 3.5 mm audio jack | No | No |
| Compatible with external heart rate monitors | Yes | Yes |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | Yes | Yes |
| Has coaching | Yes | Yes |
| Includes maps | Yes | Yes |
| Supports routes | Yes | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has live tracking | Yes | Yes |
| Has exercise diary | Yes | Yes |
| Predicts ovulation | Yes | Yes |
| Can be personalised | Yes | Yes |
| Has weight tracking | Yes | Yes |
| Predicts start date | Yes | Yes |
| Tracks water intake | Yes | Yes |
| Has inactivity alerts | Yes | Yes |
| Has period notifications | Yes | Yes |
| Has temperature tracking | Yes | Yes |
| Provides activity reports | Yes | Yes |
| Displays fertile window notifications | Yes | Yes |
| Counts how many calories you've burned | Yes | Yes |
| Activity tracking | ||
| Measures pace | Yes | Yes |
| Tracks distance | Yes | Yes |
| Tracks elevation | Yes | Yes |
| Designed for golf | No | Yes |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | No | Yes |
| Has a route tracker | Yes | Yes |
| Has exercise tagging | Yes | Yes |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | Yes | Yes |
| Has multi-sport mode | — | Yes |
Wrist Fit
Amazfit Active
Sits best on wrists ~38–51mm wide (≈ 10.1–13.6cm circumference).
Amazfit Balance 2
Sits best on wrists ~50–68mm wide (≈ 13.4–18.2cm circumference).
Frequently Asked Questions
Is the Amazfit Active bigger than the Amazfit Balance 2?
The Amazfit Balance 2 is bigger — 47.4mm vs 42.36mm case width.
Which fits a smaller wrist better, the Amazfit Active or the Amazfit Balance 2?
The Amazfit Active suits wrists around 38–51mm wide, and the Amazfit Balance 2 around 50–68mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Amazfit Active and Amazfit Balance 2 side by side at true scale?
Yes — the schematics and photos above show both watches at matched scale, and our fit tool overlays each on your wrist width.