Phone Comparison - Apple Watch Ultra vs OnePlus Watch 2 vs Xiaomi Watch 2
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| Manufacturer | Apple | OnePlus | Xiaomi |
| Announced | September 2022 | February 2024 | February 2024 |
| Status | Available - September 2022 | Coming Soon - March 2024 | Available - February 2024 |
| Colors | Titanium | Black Steel, Radiant Steel | Black, Silver |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
49 x 44 x 14.4 mm (1.93 x 1.73 x 0.57 in) |
47 x 46.6 x 12.1 mm (1.85 x 1.83 x 0.48 in) |
47.5 x 45.9 x 11.8 mm (1.87 x 1.81 x 0.46 in) |
| Weight | 61.3 g (2.15.0.11 oz) | 49 g (1.73 oz) | 36.8 g (1.27.0.28 oz) |
| SIM Type | eSIM | No | No |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | N/A | N/A |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, Canada |
N/A | N/A |
| 4G Network | 1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada |
N/A | N/A |
| SAR EU |
0.35 W/kg (head) 0.60 W/kg (body) |
- W/kg (head) - W/kg (body) |
- W/kg (head) - W/kg (body) |
| Messaging | |||
| Build Features | IP6X certified 100m water resistant (WR100) 40m swimproof/diving (EN13319) MIL-STD 810H certified ECG certified (region dependent SW application; HW available on all models) |
IP68 dust/water resistant (up to 1.5m for 30 min) MIL-STD-810H compliant Waterproof (5ATM) Compatible with standard 22mm straps |
Waterproof (5ATM) |
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| OS | watchOS 9.0 | Android Wear OS 4 | Android Wear OS |
| Processor | Dual-core, Apple S8 | , Qualcomm Snapdragon W5 Gen 1 (4 nm) | , Qualcomm Snapdragon W5+ Gen 1 (4 nm) |
| GPU | PowerVR | - | - |
| RAM | N/A | 2 GB | 2 GB |
| Internal Memory | 32 GB | 32 GB | 32 GB |
| External Memory | No | No | No |
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| Type | Retina LTPO OLED Screen 2000 nits (peak) Sapphire Crystal Glass |
Circular AMOLED Screen, 1000 Nits (HBM) Sapphire Crystal Glass |
Circular AMOLED Screen, 600 Nits |
| Colors | 16M Colors | 16M colors | 16M colors |
| Size | 1.92 inches | 1.43 inches | 1.43 inches |
| Resolution | 502 x 410 pixels (338 ppi) | 466 x 466 pixels (461 ppi) | 466 x 466 pixels (461 ppi) |
| Screen-to-Body Ratio | 53.91% | 30.10% | 30.24% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | |||
| Flash | No | No | No |
| Features | |
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| Video | |||
| Front Camera | , , [Similar] |
[Similar] |
[Similar] |
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| GPRS | Yes | No | No |
| Edge | Yes | No | No |
| 3G | HSPA 42.2/5.76 Mbps, LTE | No | N/A |
| Bluetooth | 5.3, A2DP, LE | 5.0, A2DP, LE | 5.2, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, dual-band | Wi-Fi 802.11 a/b/g/n, dual-band | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| USB | No | No | No |
| GPS | Yes, with dual-band A-GPS, GLONASS, GALILEO, BDS | GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS | GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS |
| Browser | Yes | Yes | Yes |
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| Internal | 32 GB | 32 GB, 2 GB RAM eMMC | 32 GB, 2 GB RAM |
| Expandable Storage | No | No | No |
| USB OTG | Not Supported | Not Supported | Not Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Magnetic-Field Sensor (Compass) | |
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| Gyroscope Sensor | |
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| Barometer Sensor | |
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| Heart-rate Sensor | |
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| NFC | |
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| Type | Non-removable Li-Ion Battery Wireless charging |
Non-removable Li-Po Battery Battery Charging 7.5W |
Non-removable Li-Po Battery Magnetic charging |
| Capacity | 542 mAh | 500 mAh | 495 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
