| Product |
Oppo Watch 2
|
Xiaomi Watch S4
|
| Battery |
| Type |
Li-Ion 510 mAh |
Li-Po 486 mAh |
| Body |
| Build |
Glass front, aluminum frame |
Aluminum alloy frame, stainless steel bezel |
| Dimensions |
46.4 x 38.5 x 11.6 mm (1.83 x 1.52 x 0.46 in) |
47.3 x 47.3 x 12 mm (1.86 x 1.86 x 0.47 in) |
| SIM |
eSIM (market/region dependent) |
eSIM (market/region dependent) |
| Weight |
35 g (46mm) / 31 g (42mm) (1.09 oz) |
44.5 g (1.59 oz) |
| |
5ATM water resistant |
Waterproof (5ATM) |
| Camera |
| |
No |
No |
| Comms |
| Bluetooth |
5.0, A2DP, LE |
5.3, A2DP, LE |
| NFC |
Yes |
Yes (market/region dependent) |
| Positioning |
GPS, GLONASS, GALILEO, BDS |
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS |
| Radio |
No |
No |
| USB |
No |
No |
| WLAN |
Wi-Fi 802.11 b/g/n |
No |
| Display |
| Protection |
- |
Scratch/drop-proof glass |
| Resolution |
402 x 476 pixels (~326 ppi density) |
466 x 466 pixels (~326 ppi density) |
| Size |
1.91 inches |
1.43 inches |
| Type |
AMOLED |
AMOLED, 1500 nits (HBM), 2200 nits (peak) |
| Features |
| Sensors |
Accelerometer, gyro, heart rate, compass, barometer, SpO2 |
Accelerometer, gyro, compass, barometer, heart rate, SpO2 |
| Launch |
| Announced |
2021, July 27 |
2024, October 29 |
| Status |
Available. Released 2021, July 27 |
Available. Released 2024, October 29 |
| Memory |
| Card slot |
No |
No |
| Internal |
8GB 1GB RAM |
- |
| |
eMMC 4.5 |
- |
| Misc |
| Colors |
Star Blue, Platinum Black, Rose Gold |
Black, Silver, Rainbow |
| Models |
OW20W2 |
M2424W1, M2425W1 |
| Network |
| 2G bands |
N/A |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 850 / 900 / 2100 |
HSDPA |
| 4G bands |
1, 3, 5, 8, 34, 38, 39, 40, 41 - China |
LTE |
| EDGE |
- |
No |
| GPRS |
- |
No |
| Speed |
HSPA, LTE |
HSPA, LTE |
| Technology |
HSPA / LTE |
GSM / HSPA / LTE |
| Platform |
| Chipset |
Qualcomm Snapdragon Wear 4100 (12 nm) |
- |
| CPU |
Quad-core 1.7 GHz Cortex-A53 |
- |
| GPU |
Adreno 504 |
- |
| OS |
Android Wear OS - InternationalColorOS Watch 2.0 - China |
HyperOS 2 |
| Sound |
| 3.5mm jack |
No |
No |
| Loudspeaker |
Yes |
Yes |
