Amazfit Bip 5 Unity vs Amazfit GTS 4 MiniSize, Specs & Wrist Fit Compared
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Amazfit
Bip 5 Unity
Amazfit
GTS 4 Mini
Which one fits you
On wrists narrower than about 48mm, the Amazfit GTS 4 Mini is the safer pick — it stays proportionate down to roughly 44mm, where the Amazfit Bip 5 Unity starts to hang over the edge. Above 48mm both sit cleanly, and the Amazfit Bip 5 Unity gives you more presence.
The Amazfit Bip 5 Unity and Amazfit GTS 4 Mini share a near-identical 37.08mm case, so wrist presence comes down to thickness, lug-to-lug and weight.
The Amazfit GTS 4 Mini is the slimmer of the two (9.1mm vs 10mm), so it slides under a cuff more easily.
On the wrist the Amazfit GTS 4 Mini feels lighter (19g vs 25g, case only).
Among the 58 37mm watches we hold thickness for, the Amazfit Bip 5 Unity is thinner than 79%, so it wears flatter than its width suggests.
Among the 56 37mm watches we hold thickness for, the Amazfit GTS 4 Mini is thinner than 100%, so it wears flatter than its width suggests.
Specification Comparison
| Spec | AmazfitBip 5 Unity | AmazfitGTS 4 Mini |
|---|---|---|
| Case Width | 37.08mm | 36.66mm |
| Lug-to-Lug | 45.8mm | 41.8mm |
| Thickness | 10mm | 9.1mm |
| Weight | 25g | 19g |
| Shape | Rectangle | Rectangle |
| Water Resistance | Water resistant | 5 ATM |
| GPS | No | 21 hours |
| Display | 1.91 inches | 1.65 inches |
| Always-On Display | No | Yes |
| Charge time | 2 hours | 2 hours |
| Battery life | 11 days | 15 days |
| Battery power | 300 mAh | 270 mAh |
| Has wireless charging | Yes | No |
| Has a removable battery | No | No |
| Has a solar power battery | No | No |
| Has a rechargeable battery | Yes | Yes |
| Battery life in training mode | 5 hours | — |
| Battery life in power save mode | 26 hours | — |
| Has a battery level indicator | Yes | Yes |
| Battery life with GPS on | — | 21 hours |
| Released | — | 2022 |
Battery life compared
The two are closest in everyday use and furthest apart in Smartwatch mode, where one lasts 1.4× as long as the other (15 days against 11 days).
Amazfit Bip 5 UnityAmazfit GTS 4 Mini
Smartwatch
11 days15 daysBattery Saver
26 hours—GPS
—21 hoursTraining
5 hours—
Full Specification Comparison
116 specs| Spec | Amazfit Bip 5 Unity | Amazfit GTS 4 Mini |
|---|---|---|
| Design | ||
| width | 37.08 | 36.66 |
| height | 45.8 | 41.8 |
| volume | 16.98 cm³ | 13.94 cm³ |
| weight | 25 g | 19 g |
| thickness | 10 | 9.1 |
| resolution | 320 x 380 px | 336 x 384 px |
| screen size | 1.91 inches | 1.65 inches |
| Display type | LCD | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 260 ppi | 309 ppi |
| width of band | 22 mm | 20 mm |
| water resistance | Water resistant | Waterproof |
| Always-On Display | No | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | — |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | No |
| Ingress Protection (IP) rating | IP68 | — |
| has branded damage-resistant glass | No | No |
| ATM rating | — | 5 ATM |
| waterproof depth rating | — | 50 m |
| Battery | ||
| charge time | 2 hours | 2 hours |
| battery life | 11 days | 15 days |
| battery power | 300 mAh | 270 mAh |
| has wireless charging | Yes | No |
| has a removable battery | No | No |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| battery life in training mode | 5 hours | — |
| battery life in power save mode | 26 hours | — |
| battery life with GPS on | — | 21 hours |
| Sensors | ||
| has GPS | No | Yes |
| has a compass | No | Yes |
| Has a barometer | No | — |
| has a gyroscope | No | No |
| Has a cadence sensor | No | — |
| has an accelerometer | Yes | Yes |
| Monitors perspiration | No | No |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | Yes | No |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | Yes |
| warranty period | 1 years | — |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| has HRV tracking | Yes | No |
| measures VO2 max | No | Yes |
| Has notifications | Yes | Yes |
| has a front camera | No | — |
| has voice commands | No | Yes |
| Acquires GPS faster | No | No |
| Has vibrating alerts | Yes | Yes |
| shows readiness level | Yes | No |
| Can be used to answer calls | Yes | No |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | Yes | No |
| has fast/slow heart rate notifications | Yes | Yes |
| Has a built-in camera remote control function | No | — |
| release date | — | 2022-07-16 |
| Has ECG technology | — | No |
| Locates your phone | — | Yes |
| has fall detection | — | No |
| number of microphones | — | 1 |
| Connectivity | ||
| has NFC | No | No |
| supports Wi-Fi | No | No |
| 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 |
| 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 |
| maximum Bluetooth range | — | 10 m |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | Yes | Yes |
| Has coaching | Yes | No |
| 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 | No |
| 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 | No |
| Designed for golf | No | No |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | No | No |
| Has a route tracker | Yes | Yes |
| Has exercise tagging | Yes | Yes |
| Has multi-sport mode | No | Yes |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | No | Yes |
Wrist Fit
Amazfit Bip 5 Unity
Sits best on wrists ~48–65mm wide (≈ 12.8–17.4cm circumference).
Amazfit GTS 4 Mini
Sits best on wrists ~44–60mm wide (≈ 11.7–16.0cm circumference).
2D Dimension Schematics
Accurate scale drawings based on case dimensions. Drag to pan, Ctrl+scroll to zoom. Works for every watch regardless of photo availability.
Frequently Asked Questions
Is the Amazfit Bip 5 Unity bigger than the Amazfit GTS 4 Mini?
The Amazfit Bip 5 Unity is bigger — 37.08mm vs 36.66mm case width.
Which fits a smaller wrist better, the Amazfit Bip 5 Unity or the Amazfit GTS 4 Mini?
The Amazfit Bip 5 Unity suits wrists around 48–65mm wide, and the Amazfit GTS 4 Mini around 44–60mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Amazfit Bip 5 Unity and Amazfit GTS 4 Mini 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.