Samsung Galaxy Watch8 Wi-Fi 40mm vs Xiaomi Redmi Watch 6
Size, specs & wrist fit compared
Which one fits you
Under 14.5 cm (5.7 in) round, the Xiaomi Redmi Watch 6's lugs overhang and the Samsung Galaxy Watch8 Wi-Fi 40mm's do not; the Samsung Galaxy Watch8 Wi-Fi 40mm fills the wrist at 14–15.5 cm, the Xiaomi Redmi Watch 6 at 15–17 cm.
What else differs
- Screen: the Xiaomi Redmi Watch 6 has the larger screen, 2.1 in across against 1.34 in on the Samsung Galaxy Watch8 Wi-Fi 40mm.
- Battery: 24 days for the Xiaomi Redmi Watch 6 against 2 days for the Samsung Galaxy Watch8 Wi-Fi 40mm in everyday use.
- Only the Samsung Galaxy Watch8 Wi-Fi 40mm has an ECG app, contactless payments (NFC) and a sapphire lens.
The Samsung Galaxy Watch8 Wi-Fi 40mm and Xiaomi Redmi Watch 6 share a near-identical 40.4mm case, so on the wrist the difference is thickness and weight.
The Samsung Galaxy Watch8 Wi-Fi 40mm is the thinnest of the 40 smartwatches 40mm across that we hold thickness for.
The Samsung Galaxy Watch8 Wi-Fi 40mm is 0.4mm wider, 3.8mm shorter, 1.3mm thinner and 1g lighter than the Xiaomi Redmi Watch 6.
Samsung
Galaxy Watch8 Wi-Fi 40mm
Xiaomi
Redmi Watch 6
Samsung Galaxy Watch8 Wi-Fi 40mm or Xiaomi Redmi Watch 6 by wrist size
| Wrist round (mm left each side) | Samsung Galaxy Watch8 Wi-Fi 40mm | Xiaomi Redmi Watch 6 |
|---|---|---|
| 14 cm / 5.5 in | Sweet spot (1.2mm) | Overhangs (0.7mm over) |
| 15 cm / 5.9 in | Sweet spot (2.8mm) | Bold (0.9mm) |
| 16 cm / 6.3 in | Balanced (4.5mm) | Sweet spot (2.6mm) |
| 17 cm / 6.7 in | Balanced (6.1mm) | Balanced (4.2mm) |
| 18 cm / 7.1 in | Balanced (7.7mm) | Balanced (5.8mm) |
| 19 cm / 7.5 in | Understated (9.3mm) | Balanced (7.4mm) |
| 20 cm / 7.9 in | Understated (10.9mm) | Balanced (9mm) |
Switch or add watches
Samsung
Galaxy Watch8 Wi-Fi 40mm
Xiaomi
Redmi Watch 6
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Battery life compared
Samsung Galaxy Watch8 Wi-Fi 40mmXiaomi Redmi Watch 6
Smartwatch
—24 daysHeavy use
—12 daysBattery life
2 days—
More comparisons
2D Dimension Schematics
- Samsung Galaxy Watch8 Wi-Fi 40mm 40.4mm × 42.7mm · 8.6mm thick
- Xiaomi Redmi Watch 6 40mm × 46.5mm · 9.9mm thick
3D preview
Samsung Galaxy Watch8 Wi-Fi 40mm vs Xiaomi Redmi Watch 6 on a wrist
Specifications
The short version
11 key specs| Spec | SamsungGalaxy Watch8 Wi-Fi 40mm | XiaomiRedmi Watch 6 |
|---|---|---|
| Case Width | 40.4mm | 40mm |
| Lug-to-Lug | 42.7mm | 46.5mm |
| Thickness | 8.6mm | 9.9mm |
| Weight | 30g | 31g |
| Shape | Circular | Rectangle |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.34 inches | 2.1 inches |
| Battery life | 2 days | 24 days |
| Released | 2025 | 2025 |
Where the specifications differ
31 differences| Spec | Samsung Galaxy Watch8 Wi-Fi 40mm | Xiaomi Redmi Watch 6 |
|---|---|---|
| Design | ||
| width | 40.4 | 40 |
| height | 42.7 | 46.5 |
| volume | 14.84 cm³ | 18.41 cm³ |
| weight | 30 g | 31 g |
| thickness | 8.6 | 9.9 |
| resolution | 438 x 438 px | 432 x 514 px |
| screen size | 1.34 inches | 2.1 inches |
| pixel density | 327 ppi | 324 ppi |
| width of band | 20 mm | 22 mm |
| Has sapphire glass display | Yes | No |
| maximum operating temperature | 35 °C | 45 °C |
| lowest potential operating temperature | 0 °C | -10 °C |
| Battery | ||
| battery life | 2 days | 24 days |
| battery power | 325 mAh | 550 mAh |
| has wireless charging | Yes | No |
| Sensors | ||
| Has a barometer | Yes | No |
| Has a cadence sensor | No | Yes |
| Has a temperature sensor | Yes | No |
| Features | ||
| release date | 2025-07-09 | 2025-10-23 |
| measures VO2 max | Yes | No |
| Has ECG technology | Yes | No |
| has fall detection | Yes | No |
| has irregular heart rate warnings | Yes | No |
| Connectivity | ||
| has NFC | Yes | No |
| supports Wi-Fi | Yes | No |
| Bluetooth version | 5.3 | 5.4 |
| Is compatible with iOS | No | Yes |
| Miscellaneous | ||
| Has passcode | Yes | No |
| App & Software | ||
| Has temperature tracking | Yes | No |
| Activity tracking | ||
| Tracks distance | Yes | No |
| Tracks elevation | Yes | No |
The other 64 specifications both list are identical.
Full Samsung Galaxy Watch8 Wi-Fi 40mm specifications →Full Xiaomi Redmi Watch 6 specifications →