Amazfit GTR Mini vs Pop 3R
Size, specs & wrist fit compared
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Which one fits you
On wrists narrower than about 48mm, the GTR Mini is the safer pick — it stays proportionate down to roughly 45mm, where the Pop 3R starts to hang over the edge. Above 48mm both sit cleanly, and the Pop 3R gives you more presence.
The Pop 3R wears larger than the GTR Mini (45.5mm vs 42.8mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The GTR Mini is the slimmer of the two (9.25mm vs 10.8mm), so it slides under a cuff more easily.
On the wrist the GTR Mini feels lighter (36.2g vs 55.48g, case only).
The GTR Mini is thinner than 99% of the 43mm watches we track and the Pop 3R than 97% of the 46mm ones — so both wear flatter than their widths suggest.
The Pop 3R is 2.7mm wider, 2.7mm longer, 1.6mm thicker and 19.3g heavier than the GTR Mini. Both are circular.
GTR Mini
Pop 3R
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Amazfit
GTR Mini
Amazfit
Pop 3R
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 GTR Mini
Case 42.8mm · Lug-to-lug 42.8mm · Thickness 9.3mm · 36g
Balanced Fit
42.8mm on a 55mm wrist
Comfortably inside the edges of your wrist, and it seats and sits low enough to wear without thinking about it.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 42.8mm, 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 wrist6.1mm spare each side
Comfortable, with visible skin either side.
- Off the wrist9.3mm off the skin
Sits low enough to disappear under a cuff. (9.3mm case, back against the skin)
- How it seats~4.3mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist36g
Light enough to forget you have it on. (0.7g per mm of wrist)
Amazfit Pop 3R
Case 45.5mm · Lug-to-lug 45.5mm · Thickness 10.8mm · 55g
Balanced Fit
45.5mm on a 55mm wrist
Comfortably inside the edges of your wrist, and it seats and sits low enough to wear without thinking about it.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 45.5mm, 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 wrist4.8mm 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~5.4mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist55g
Substantial without being a burden — the usual weight of a steel watch on a wrist this size. (1.0g 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 GTR Mini42.8mm · 9.3mm thick
- Amazfit Pop 3R45.5mm · 10.8mm thick
3D preview
GTR Mini vs Pop 3R 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 Smartwatch mode, where the GTR Mini lasts 1.2× as long as the Pop 3R (14 days against 12 days).
GTR MiniPop 3R
Battery Saver
720 hours—Smartwatch
14 days12 daysTraining
168 hours—GPS
25 hours—
Specifications
The short version
10 key specs| Spec | AmazfitGTR Mini | AmazfitPop 3R |
|---|---|---|
| Case Width | 42.8mm | 45.5mm |
| Thickness | 9.25mm | 10.8mm |
| Weight | 36.2g | 55.48g |
| Shape | Circular | Circular |
| Water Resistance | 5 ATM | Water resistant |
| GPS | Yes | No |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.28 inches | 1.43 inches |
| Battery life | 14 days | 12 days |
| Released | 2023 | 2023 |
Every specification
111 specs| Spec | Amazfit GTR Mini | Amazfit Pop 3R |
|---|---|---|
| Design | ||
| width | 42.8 | 45.5 |
| height | 42.8 | 45.5 |
| volume | 16.94 cm³ | 22.36 cm³ |
| weight | 36.2 g | 55.48 g |
| thickness | 9.25 | 10.8 |
| ATM rating | 5 ATM | — |
| resolution | 416 x 416 px | 466 x 466 px |
| screen size | 1.28 inches | 1.43 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 326 ppi | 460 ppi |
| width of band | 20 mm | — |
| water resistance | Water resistant | Water resistant |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | No |
| Ingress Protection (IP) rating | IP68 | IP68 |
| has branded damage-resistant glass | No | No |
| is designed for kids | — | No |
| Battery | ||
| charge time | 2 hours | 1.5 hours |
| battery life | 14 days | 12 days |
| battery power | 280 mAh | — |
| has wireless charging | Yes | — |
| has a removable battery | No | No |
| battery life with GPS on | 25 hours | — |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| battery life in training mode | 168 hours | — |
| battery life in power save mode | 720 hours | — |
| Sensors | ||
| has GPS | Yes | No |
| has a compass | Yes | No |
| Has a barometer | No | No |
| has a gyroscope | Yes | No |
| 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 | No | No |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| release date | 2023-03-16 | 2023-06-29 |
| 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 |
| measures VO2 max | Yes | — |
| Has notifications | Yes | Yes |
| Has ECG technology | No | No |
| Locates your phone | Yes | Yes |
| has fall detection | No | No |
| has voice commands | No | Yes |
| Has vibrating alerts | Yes | Yes |
| shows readiness level | Yes | — |
| Can be used to answer calls | No | Yes |
| measures resting heart rate | Yes | — |
| has irregular heart rate warnings | No | No |
| Has a built-in camera remote control function | Yes | No |
| Acquires GPS faster | — | No |
| Connectivity | ||
| has NFC | No | No |
| supports ANT+ | Yes | No |
| supports Wi-Fi | No | No |
| supports Galileo | Yes | No |
| 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 | — |
| Is compatible with Windows | No | No |
| Is compatible with Mac OS X | No | No |
| Compatible with smart scales | 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 |
| has an external memory slot | — | No |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | Yes | Yes |
| Has coaching | Yes | — |
| Includes maps | Yes | — |
| Supports routes | Yes | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has live tracking | Yes | — |
| Has exercise diary | Yes | Yes |
| Predicts ovulation | 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 | No | No |
| Provides activity reports | Yes | Yes |
| Displays fertile window notifications | Yes | — |
| Counts how many calories you've burned | Yes | Yes |
| Activity tracking | ||
| Measures pace | Yes | Yes |
| Tracks distance | Yes | Yes |
| Tracks elevation | No | Yes |
| 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 | No |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | No | No |
Wrist Fit
Amazfit GTR Mini
Sits best on wrists ~45–61mm wide (≈ 12.0–16.3cm circumference).
Amazfit Pop 3R
Sits best on wrists ~48–65mm wide (≈ 12.8–17.4cm circumference).
Frequently Asked Questions
Is the Amazfit GTR Mini bigger than the Amazfit Pop 3R?
The Amazfit Pop 3R is bigger — 45.5mm vs 42.8mm case width.
Which fits a smaller wrist better, the Amazfit GTR Mini or the Amazfit Pop 3R?
The Amazfit GTR Mini suits wrists around 45–61mm wide, and the Amazfit Pop 3R around 48–65mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Amazfit GTR Mini and Amazfit Pop 3R 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.