Xiaomi Watch 2 vs Watch 5
Size, specs & wrist fit compared
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Which one fits you
Both need much the same wrist — roughly 49–68mm across the flat of the wrist. Neither will fit where the other won't, so decide on thickness, weight and features instead.
The Watch 5 wears larger than the Watch 2 (47mm vs 45.9mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Watch 2 is the slimmer of the two (11.8mm vs 12.3mm), so it slides under a cuff more easily.
On the wrist the Watch 2 feels lighter (36.8g vs 56g, case only).
Among the 203 46mm watches we hold thickness for, the Watch 2 is thinner than 82%, so it wears flatter than its width suggests.
The Watch 5 is middle-of-the-pack for thickness among the 102 47mm watches in the database.
The Watch 5 is 1.1mm wider, 0.5mm shorter, 0.5mm thicker and 19.2g heavier than the Watch 2. Both are circular.
Watch 2
Watch 5
Switch or add watches
Xiaomi
Watch 2
Xiaomi
Watch 5
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.
Xiaomi Watch 2
Case 45.9mm · Lug-to-lug 47.5mm · Thickness 11.8mm · 37g
Sweet Spot
47.5mm on a 55mm wrist
47.5mm across a wrist that has the room for it, and nothing else about the case argues with the size.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 47.5mm.
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 wrist11.8mm off the skin
Normal sports-watch height for a wrist this size. (11.8mm 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 wrist37g
Light enough to forget you have it on. (0.7g per mm of wrist)
Xiaomi Watch 5
Case 47.0mm · Lug-to-lug 47.0mm · Thickness 12.3mm · 56g
Sweet Spot
47mm on a 55mm wrist
Across the wrist it works — 4.0mm 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 47mm.
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 wrist4.0mm 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~6.1mm under the rim
Wide enough that the edge of the case back lifts clear of the skin.
- Weight on the wrist56g
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.
- Xiaomi Watch 245.9mm × 47.5mm · 11.8mm thick
- Xiaomi Watch 547mm · 12.3mm thick
3D preview
Watch 2 vs Watch 5 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 5 lasts 2.7× as long as the 2 (6 days against 2.2 days).
25
Battery Saver
—432 hoursSmartwatch
2.2 days6 days
Specifications
The short version
11 key specs| Spec | XiaomiWatch 2 | XiaomiWatch 5 |
|---|---|---|
| Case Width | 45.9mm | 47mm |
| Lug-to-Lug | 47.5mm | 47mm |
| Thickness | 11.8mm | 12.3mm |
| Weight | 36.8g | 56g |
| Shape | Circular | Circular |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.43 inches | 1.54 inches |
| Battery life | 2.2 days | 6 days |
| Released | 2024 | 2025 |
Every specification
114 specs| Spec | Xiaomi Watch 2 | Xiaomi Watch 5 |
|---|---|---|
| Design | ||
| width | 45.9 | 47 |
| height | 47.5 | 47 |
| volume | 25.73 cm³ | 27.17 cm³ |
| weight | 36.8 g | 56 g |
| thickness | 11.8 | 12.3 |
| ATM rating | 5 ATM | 5 ATM |
| resolution | 466 x 466 px | 480 x 480 px |
| screen size | 1.43 inches | 1.54 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 326 ppi | 312 ppi |
| water resistance | Waterproof | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | No |
| waterproof depth rating | 50 m | — |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | Yes |
| has branded damage-resistant glass | No | No |
| Battery | ||
| charge time | 0.75 hours | — |
| battery life | 2.2 days | 6 days |
| battery power | 495 mAh | 930 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 power save mode | — | 432 hours |
| Sensors | ||
| has GPS | Yes | Yes |
| has a compass | Yes | Yes |
| Has a barometer | Yes | Yes |
| has a gyroscope | Yes | 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 | No |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| RAM | 2GB | 2GB |
| release date | 2024-02-20 | 2025-12-26 |
| 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 |
| internal storage | 32GB | 32GB |
| Has notifications | Yes | Yes |
| Has ECG technology | No | No |
| Locates your phone | Yes | Yes |
| has fall detection | Yes | No |
| has voice commands | Yes | Yes |
| Has vibrating alerts | Yes | Yes |
| number of microphones | 1 | 1 |
| 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 | Yes | Yes |
| has HRV tracking | — | Yes |
| measures VO2 max | — | Yes |
| has a front camera | — | No |
| Acquires GPS faster | — | Yes |
| shows readiness level | — | Yes |
| Connectivity | ||
| has NFC | Yes | Yes |
| supports ANT+ | No | No |
| supports Wi-Fi | Yes | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5.2 | 5.4 |
| has a cellular module | No | No |
| Is compatible with iOS | No | Yes |
| Is compatible with Android | Yes | Yes |
| Wi-Fi version | — | Wi-Fi 4 (802.11n) |
| Miscellaneous | ||
| Has passcode | Yes | No |
| Is compatible with Windows | No | No |
| Is compatible with Mac OS X | No | No |
| has an external memory slot | No | No |
| 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 |
| App & Software | ||
| Ad-free | Yes | — |
| Free app | Yes | Yes |
| Tracks BMI | Yes | — |
| Has coaching | No | Yes |
| Supports routes | No | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has exercise diary | Yes | Yes |
| Can be personalised | Yes | Yes |
| Has weight tracking | Yes | Yes |
| Tracks water intake | Yes | Yes |
| number of exercises | 161 | — |
| Has inactivity alerts | Yes | Yes |
| Has temperature tracking | Yes | — |
| Doesn’t require account | No | No |
| Provides activity reports | Yes | Yes |
| Counts how many calories you've burned | Yes | Yes |
| Includes maps | — | Yes |
| Predicts ovulation | — | Yes |
| Predicts start date | — | Yes |
| Has period notifications | — | Yes |
| Displays fertile window notifications | — | Yes |
| Activity tracking | ||
| Measures pace | Yes | Yes |
| Tracks distance | Yes | Yes |
| Tracks elevation | Yes | Yes |
| Designed for golf | 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
Xiaomi Watch 2
Sits best on wrists ~50–68mm wide (≈ 13.4–18.2cm circumference).
Xiaomi Watch 5
Sits best on wrists ~49–67mm wide (≈ 13.1–17.9cm circumference).
Frequently Asked Questions
Is the Xiaomi Watch 2 bigger than the Xiaomi Watch 5?
The Xiaomi Watch 5 is bigger — 47mm vs 45.9mm case width.
Which fits a smaller wrist better, the Xiaomi Watch 2 or the Xiaomi Watch 5?
The Xiaomi Watch 2 suits wrists around 50–68mm wide, and the Xiaomi Watch 5 around 49–67mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Xiaomi Watch 2 and Xiaomi Watch 5 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.