Amazfit Bip 5 vs Apple Watch SE 3 GPS 40mm
Size, specs & wrist fit compared
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Which one fits you
On wrists narrower than about 48mm, the Apple Watch SE 3 GPS 40mm is the safer pick — it stays proportionate down to roughly 42mm, where the Amazfit Bip 5 starts to hang over the edge. Above 48mm both sit cleanly, and the Amazfit Bip 5 gives you more presence.
The Amazfit Bip 5 wears larger than the Apple Watch SE 3 GPS 40mm (38mm vs 34mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
Both are middle-of-the-pack for thickness among the 38mm and 34mm watches in the database.
The Amazfit Bip 5 is 4mm wider, 5.9mm longer, 0.5mm thicker and 0.3g lighter than the Apple Watch SE 3 GPS 40mm. Both are rectangle.
Amazfit
Bip 5
Apple
Watch SE 3 - GPS · 40mm
Switch or add watches
Amazfit
Bip 5
Apple
Watch SE 3 - GPS · 40mm
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 Bip 5
Case 45.9mm · Lug-to-lug 45.9mm · Thickness 11.2mm · 26g
Balanced Fit
45.9mm 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 45.9mm, 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 wrist4.6mm spare each side
Comfortable, with visible skin either side.
- Off the wrist11.2mm off the skin
Normal sports-watch height for a wrist this size. (11.2mm case, back against the skin)
- How it seats~5.6mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist26g
Light enough to forget you have it on. (0.5g per mm of wrist)
Apple Watch SE 3 - GPS · 40mm
Case 40.0mm · Lug-to-lug 40.0mm · Thickness 10.7mm · 26g
Balanced Fit
40mm 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 40mm, 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 wrist7.5mm spare each side
Comfortable, with visible skin either side.
- Off the wrist10.7mm off the skin
Normal sports-watch height for a wrist this size. (10.7mm case, back against the skin)
- How it seats~3.4mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist26g
Light enough to forget you have it on. (0.5g 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 Bip 538mm × 45.9mm · 11.2mm thick
- Apple Watch SE 3 - GPS · 40mm34mm × 40mm · 10.7mm thick
3D preview
Amazfit Bip 5 vs Apple Watch SE 3 - GPS · 40mm 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 Bip 5 lasts 19.5× as long as the Apple Watch SE 3 GPS 40mm (26 days against 32 hours).
Amazfit Bip 5Apple Watch SE 3 GPS 40mm
Battery Saver
624 hours32 hoursSmartwatch
10 days0.75 daysTraining
5 hours—
Specifications
The short version
11 key specs| Spec | AmazfitBip 5 | AppleWatch SE 3 - GPS · 40mm |
|---|---|---|
| Case Width | 38mm | 34mm |
| Lug-to-Lug | 45.9mm | 40mm |
| Thickness | 11.2mm | 10.74mm |
| Weight | 26g | 26.3g |
| Shape | Rectangle | Rectangle |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | LCD | OLED/AMOLED |
| Screen size | 1.91 inches | 1.57 inches |
| Battery life | 10 days | 0.75 days |
| Released | 2023 | 2025 |
Every specification
121 specs| Spec | Amazfit Bip 5 | Apple Watch SE 3 - GPS · 40mm |
|---|---|---|
| Design | ||
| width | 38 | 34 |
| height | 45.9 | 40 |
| volume | 19.54 cm³ | 14.61 cm³ |
| weight | 26 g | 26.3 g |
| thickness | 11.2 | 10.74 |
| ATM rating | 5 ATM | 5 ATM |
| resolution | 320 x 380 px | 324 x 394 px |
| screen size | 1.91 inches | 1.57 inches |
| Display type | LCD | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 260 ppi | 325 ppi |
| width of band | 22 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 | IP68 |
| has branded damage-resistant glass | No | Yes |
| maximum altitude | — | 10000 feet |
| waterproof depth rating | — | 50 m |
| maximum operating temperature | — | 35 °C |
| lowest potential operating temperature | — | 0 °C |
| Battery | ||
| charge time | 2 hours | — |
| battery life | 10 days | 0.75 days |
| battery power | 300 mAh | — |
| has wireless charging | No | Yes |
| 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 | 624 hours | 32 hours |
| Sensors | ||
| has GPS | Yes | Yes |
| has a compass | No | 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 | No | Yes |
| Monitors blood oxygenation levels | Yes | No |
| Features | ||
| release date | 2023-08-01 | 2025-09-09 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | Yes |
| warranty period | 1 years | — |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| measures VO2 max | Yes | No |
| Has notifications | Yes | Yes |
| Has ECG technology | No | — |
| Locates your phone | Yes | Yes |
| has fall detection | No | Yes |
| Acquires GPS faster | No | No |
| Has vibrating alerts | Yes | Yes |
| number of microphones | 1 | 1 |
| Can be used to answer calls | Yes | Yes |
| has irregular heart rate warnings | Yes | Yes |
| Has a built-in camera remote control function | No | Yes |
| internal storage | — | 64GB |
| has a front camera | — | No |
| has voice commands | — | Yes |
| shows readiness level | — | No |
| measures resting heart rate | — | Yes |
| has fast/slow heart rate notifications | — | Yes |
| Connectivity | ||
| has NFC | No | Yes |
| supports ANT+ | No | No |
| supports Wi-Fi | No | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5.2 | 5.3 |
| has a cellular module | No | No |
| Is compatible with iOS | Yes | Yes |
| Is compatible with Android | Yes | No |
| 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 | Yes |
| 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 |
| has aptX | — | No |
| has crash detection | — | Yes |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | Yes | — |
| Has coaching | Yes | No |
| Includes maps | Yes | — |
| Supports routes | Yes | — |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has live tracking | Yes | — |
| Has exercise diary | Yes | Yes |
| Predicts ovulation | Yes | Yes |
| Can be personalised | Yes | Yes |
| Has weight tracking | Yes | No |
| Predicts start date | Yes | Yes |
| Tracks water intake | Yes | No |
| 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 | — |
| 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 | 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 | No |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | No | Yes |
Wrist Fit
Amazfit Bip 5
Sits best on wrists ~48–66mm wide (≈ 12.8–17.6cm circumference).
Apple Watch SE 3 GPS 40mm
Sits best on wrists ~42–57mm wide (≈ 11.2–15.2cm circumference).
Frequently Asked Questions
Is the Amazfit Bip 5 bigger than the Apple Watch SE 3 GPS 40mm?
The Amazfit Bip 5 is bigger — 38mm vs 34mm case width.
Which fits a smaller wrist better, the Amazfit Bip 5 or the Apple Watch SE 3 GPS 40mm?
The Amazfit Bip 5 suits wrists around 48–66mm wide, and the Apple Watch SE 3 GPS 40mm around 42–57mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Amazfit Bip 5 and Apple Watch SE 3 GPS 40mm 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.