Xiaomi
Redmi Watch 3 Active vs Redmi Watch 6
Size, specs & wrist fit compared
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Which one fits you
Both need much the same wrist — roughly 49–67mm across the flat of the wrist. Neither will fit where the other won't, so decide on thickness, weight and features instead.
The Redmi Watch 6 wears larger than the Redmi Watch 3 Active (40mm vs 38.9mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Redmi Watch 6 is the slimmer of the two (9.9mm vs 10.9mm), so it slides under a cuff more easily.
On the wrist the Redmi Watch 6 feels lighter (31g vs 42g, case only).
The Redmi Watch 3 Active is middle-of-the-pack for thickness among the 376 39mm watches in the database.
Among the 539 40mm watches we hold thickness for, the Redmi Watch 6 is thinner than 67%, so it wears flatter than its width suggests.
The Redmi Watch 6 is 1.1mm wider, 0.4mm shorter, 1mm thinner and 11g lighter than the Redmi Watch 3 Active. Both are rectangle.
Redmi Watch 3 Active
Redmi Watch 6
Switch or add watches
Xiaomi
Redmi Watch 3 Active
Xiaomi
Redmi Watch 6
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist.
- Xiaomi Redmi Watch 3 Active38.9mm × 46.9mm · 10.9mm thick
- Xiaomi Redmi Watch 640mm × 46.5mm · 9.9mm thick
3D preview
Redmi Watch 3 Active vs Redmi Watch 6 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 6 lasts 2.0× as long as the 3 Active (24 days against 12 days).
3 Active6
Smartwatch
12 days24 daysTraining
—288 hours
Specifications
The short version
11 key specs| Spec | XiaomiRedmi Watch 3 Active | XiaomiRedmi Watch 6 |
|---|---|---|
| Case Width | 38.9mm | 40mm |
| Lug-to-Lug | 46.9mm | 46.5mm |
| Thickness | 10.9mm | 9.9mm |
| Weight | 42g | 31g |
| Shape | Rectangle | Rectangle |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | No | Yes |
| Display type | LCD, IPS | OLED/AMOLED |
| Screen size | 1.83 inches | 2.1 inches |
| Battery life | 12 days | 24 days |
| Released | 2023 | 2025 |
Every specification
106 specs| Spec | Xiaomi Redmi Watch 3 Active | Xiaomi Redmi Watch 6 |
|---|---|---|
| Design | ||
| width | 38.9 | 40 |
| height | 46.9 | 46.5 |
| volume | 19.89 cm³ | 18.41 cm³ |
| weight | 42 g | 31 g |
| thickness | 10.9 | 9.9 |
| ATM rating | 5 ATM | 5 ATM |
| resolution | 240 x 280 px | 432 x 514 px |
| screen size | 1.83 inches | 2.1 inches |
| Display type | LCD, IPS | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 202 ppi | 324 ppi |
| water resistance | Sweat resistant | Water resistant |
| Always-On Display | No | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | No |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | No |
| has branded damage-resistant glass | No | No |
| width of band | — | 22 mm |
| maximum operating temperature | — | 45 °C |
| lowest potential operating temperature | — | -10 °C |
| Battery | ||
| battery life | 12 days | 24 days |
| battery power | 289 mAh | 550 mAh |
| has wireless charging | No | No |
| has a removable battery | No | No |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| charge time | — | 2 hours |
| battery life in training mode | — | 288 hours |
| Sensors | ||
| has GPS | No | Yes |
| has a compass | No | Yes |
| Has a barometer | No | No |
| has a gyroscope | No | 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 | No |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| release date | 2023-08-01 | 2025-10-23 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | No |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | No | No |
| Locates your phone | Yes | Yes |
| has a front camera | No | Yes |
| has fall detection | No | No |
| has voice commands | No | Yes |
| Acquires GPS faster | No | — |
| Has vibrating alerts | Yes | Yes |
| number of microphones | 1 | 2 |
| Can be used to answer calls | Yes | Yes |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | No | No |
| Has a built-in camera remote control function | No | Yes |
| warranty period | — | 1 years |
| measures VO2 max | — | No |
| Connectivity | ||
| has NFC | No | No |
| supports ANT+ | No | — |
| supports Wi-Fi | No | No |
| Bluetooth version | 5.3 | 5.4 |
| has a cellular module | No | No |
| Is compatible with iOS | Yes | Yes |
| Is compatible with Android | Yes | Yes |
| supports Galileo | — | Yes |
| Miscellaneous | ||
| Has passcode | No | 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 | Yes |
| App & Software | ||
| Free app | Yes | Yes |
| Has coaching | Yes | Yes |
| Supports routes | Yes | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | 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 | No |
| Doesn’t require account | No | 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 | No | Yes |
| Tracks distance | No | No |
| Tracks elevation | No | 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 | — |
| 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 Redmi Watch 3 Active
Sits best on wrists ~49–67mm wide (≈ 13.1–17.9cm circumference).
Xiaomi Redmi Watch 6
Sits best on wrists ~49–66mm wide (≈ 13.1–17.6cm circumference).
Frequently Asked Questions
Is the Xiaomi Redmi Watch 3 Active bigger than the Xiaomi Redmi Watch 6?
The Xiaomi Redmi Watch 6 is bigger — 40mm vs 38.9mm case width.
Which fits a smaller wrist better, the Xiaomi Redmi Watch 3 Active or the Xiaomi Redmi Watch 6?
The Xiaomi Redmi Watch 3 Active suits wrists around 49–67mm wide, and the Xiaomi Redmi Watch 6 around 49–66mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Xiaomi Redmi Watch 3 Active and Xiaomi Redmi Watch 6 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.