Amazfit GTR Mini vs Google Pixel Watch 4 45mm
Size, specs & wrist fit compared
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Which one fits you
On wrists narrower than about 47mm, the Amazfit GTR Mini is the safer pick — it stays proportionate down to roughly 45mm, where the Google Pixel Watch 4 45mm starts to hang over the edge. Above 47mm both sit cleanly, and the Google Pixel Watch 4 45mm gives you more presence.
The Google Pixel Watch 4 45mm wears larger than the Amazfit GTR Mini (45mm vs 42.8mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Amazfit GTR Mini is the slimmer of the two (9.25mm vs 12.3mm), so it slides under a cuff more easily.
The Amazfit GTR Mini is thinner than 99% of the 43mm watches we track and the Google Pixel Watch 4 45mm than 71% of the 45mm ones — so both wear flatter than their widths suggest.
The Google Pixel Watch 4 45mm is 2.2mm wider, 2.2mm longer, 3.1mm thicker and 0.5g heavier than the Amazfit GTR Mini. Both are circular.
Amazfit
GTR Mini
Pixel Watch 4 - 45mm
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Amazfit
GTR Mini
Pixel Watch 4 - 45mm
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)
Google Pixel Watch 4 - 45mm
Case 45.0mm · Lug-to-lug 45.0mm · Thickness 12.3mm · 37g
Balanced Fit
45mm 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 45mm, 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 wrist5.0mm spare each side
Comfortable, with visible skin either side.
- 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~5.2mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist37g
Light enough to forget you have it on. (0.7g 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
- Google Pixel Watch 4 - 45mm45mm · 12.3mm thick
3D preview
Amazfit GTR Mini vs Google Pixel Watch 4 - 45mm 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 Amazfit GTR Mini lasts 10.0× as long as the Google Pixel Watch 4 45mm (30 days against 3 days).
Amazfit GTR MiniGoogle Pixel Watch 4 45mm
Battery Saver
720 hours72 hoursSmartwatch
14 days1.6 daysTraining
168 hours—GPS
25 hours—
Specifications
The short version
10 key specs| Spec | AmazfitGTR Mini | GooglePixel Watch 4 - 45mm |
|---|---|---|
| Case Width | 42.8mm | 45mm |
| Thickness | 9.25mm | 12.3mm |
| Weight | 36.2g | 36.7g |
| Shape | Circular | Circular |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.28 inches | 1.4 inches |
| Battery life | 14 days | 1.6 days |
| Released | 2023 | 2025 |
Every specification
119 specs| Spec | Amazfit GTR Mini | Google Pixel Watch 4 - 45mm |
|---|---|---|
| Design | ||
| width | 42.8 | 45 |
| height | 42.8 | 45 |
| volume | 16.94 cm³ | 24.91 cm³ |
| weight | 36.2 g | 36.7 g |
| thickness | 9.25 | 12.3 |
| ATM rating | 5 ATM | 5 ATM |
| resolution | 416 x 416 px | 456 x 456 px |
| screen size | 1.28 inches | 1.4 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 326 ppi | 320 ppi |
| width of band | 20 mm | — |
| water resistance | Water resistant | Waterproof |
| 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 | Yes |
| Gorilla Glass version | — | Gorilla Glass 5 |
| waterproof depth rating | — | 50 m |
| Battery | ||
| charge time | 2 hours | 1.25 hours |
| battery life | 14 days | 1.6 days |
| battery power | 280 mAh | 455 mAh |
| has wireless charging | Yes | No |
| 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 | 72 hours |
| Sensors | ||
| has GPS | Yes | Yes |
| has a compass | Yes | Yes |
| Has a barometer | No | Yes |
| has a gyroscope | Yes | Yes |
| Has a cadence sensor | No | Yes |
| has an accelerometer | Yes | Yes |
| Monitors perspiration | No | No |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | No | Yes |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| release date | 2023-03-16 | 2025-08-20 |
| 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 | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | No | Yes |
| Locates your phone | Yes | Yes |
| has fall detection | No | Yes |
| has voice commands | No | Yes |
| Has vibrating alerts | Yes | Yes |
| shows readiness level | Yes | Yes |
| Can be used to answer calls | No | Yes |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | No | Yes |
| Has a built-in camera remote control function | Yes | Yes |
| RAM | — | 2GB |
| has HRV tracking | — | Yes |
| internal storage | — | 32GB |
| Acquires GPS faster | — | No |
| has fast/slow heart rate notifications | — | Yes |
| Connectivity | ||
| has NFC | No | Yes |
| supports ANT+ | Yes | — |
| supports Wi-Fi | No | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5.2 | 6 |
| has a cellular module | No | Yes |
| Is compatible with iOS | Yes | No |
| Is compatible with Android | Yes | Yes |
| SIM cards | — | 1 eSIM |
| Wi-Fi version | — | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax) |
| 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 | — |
| has an external memory slot | — | No |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | 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 | No | Yes |
| Provides activity reports | Yes | Yes |
| Displays fertile window notifications | Yes | Yes |
| Counts how many calories you've burned | Yes | Yes |
| Doesn’t require account | — | No |
| 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).
Google Pixel Watch 4 45mm
Sits best on wrists ~47–64mm wide (≈ 12.6–17.1cm circumference).
Frequently Asked Questions
Is the Amazfit GTR Mini bigger than the Google Pixel Watch 4 45mm?
The Google Pixel Watch 4 45mm is bigger — 45mm vs 42.8mm case width.
Which fits a smaller wrist better, the Amazfit GTR Mini or the Google Pixel Watch 4 45mm?
The Amazfit GTR Mini suits wrists around 45–61mm wide, and the Google Pixel Watch 4 45mm around 47–64mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Amazfit GTR Mini and Google Pixel Watch 4 45mm 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.