Xiaomi Mix 4 vs Oppo Find X3 Pro: A Deep Dive into Flagship Features
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🏆 Quick Verdict
For users prioritizing charging speed and a potentially brighter display, the Xiaomi Mix 4 is the clear winner. Its 120W wired charging and 50W wireless charging drastically outperform the Oppo Find X3 Pro's 65W and 30W respectively. However, the Find X3 Pro’s endurance rating suggests comparable real-world battery life.
| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Mix 4 | Oppo Find X3 Pro |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 42, 66 - International |
| 5G bands | 1, 3, 5, 8, 28, 41, 77, 78, 79 SA/NSA/Sub6 | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78, 79 SA/NSA - International |
| Speed | HSPA, LTE, 5G | HSPA, LTE, 5G |
| Technology | GSM / CDMA / HSPA / EVDO / LTE / 5G | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G |
| CDMA2000 1xEV-DO | 1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 40, 41, 66, 77, 78, 79 SA/NSA - China | |
| Launch | ||
|---|---|---|
| Announced | 2021, August 10 | 2021, March 11 |
| Status | Available. Released 2021, August 16 | Available. Released 2021, March 19 |
| Body | ||
|---|---|---|
| Build | Glass front (Gorilla Glass Victus), ceramic back, aluminum frame | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame |
| Dimensions | 162.6 x 75.4 x 8 mm (6.40 x 2.97 x 0.31 in) | 163.6 x 74 x 8.3 mm (6.44 x 2.91 x 0.33 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + eSIM |
| Weight | 225 g (7.94 oz) | 193 g (6.81 oz) |
| IP53, dust and splash resistant | IP68 dust/water resistant (up to 1.5m for 30 min) | |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass Victus | Corning Gorilla Glass 5 |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) | 1440 x 3216 pixels, 20:9 ratio (~525 ppi density) |
| Size | 6.67 inches, 107.4 cm2 (~87.6% screen-to-body ratio) | 6.7 inches, 108.4 cm2 (~89.6% screen-to-body ratio) |
| Type | AMOLED, 1B colors, 120Hz, HDR10+, Dolby Vision, 800 nits (HBM) | LTPO AMOLED, 1B colors, 120Hz, HDR10+, BT.2020, 500 nits (typ), 1300 nits (peak) |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x2.99 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) | Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) |
| Chipset | Qualcomm SM8350 Snapdragon 888+ 5G (5 nm) | Qualcomm SM8350 Snapdragon 888 5G (5 nm) |
| GPU | Adreno 660 | Adreno 660 |
| OS | Android 11, MIUI 12.5 | Android 11, upgradable to Android 14, ColorOS 14 |
| Memory | ||
|---|---|---|
| Card slot | No | No |
| Internal | 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM | 256GB 8GB RAM, 256GB 12GB RAM, 512GB 16GB RAM |
| UFS 3.1 | UFS 3.1 | |
| Main Camera | ||
|---|---|---|
| Features | Laser AF, color spectrum sensor, Dual-LED flash, HDR, panorama | Color spectrum sensor, LED flash, HDR, panorama |
| Quad | - | 50 MP, f/1.8, 26mm (wide), 1/1.56", 1.0µm, multi-directional PDAF, OIS 13 MP, f/2.4, 52mm (telephoto), 1/3.4", 1.0µm, 2x optical zoom, PDAF 50 MP, f/2.2, 16mm, 110˚ (ultrawide), 1/1.56", 1.0µm, multi-directional PDAF 3 MP, f/3.0, (microscope), AF, ring flash, 60x magnification |
| Single | 20 MP, 27mm (wide), 1/3.4", 0.8µm, under display | - |
| Triple | 108 MP, f/1.9, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 8 MP, f/4.1, 120mm (periscope telephoto), PDAF, OIS, 5x optical zoom 13 MP, f/2.2, 12mm, 123˚ (ultrawide), 1/3.06", 1.12µm | - |
| Video | 8K@24fps, 4K@30/60fps, 1080p@30/60/120/480fps; gyro-EIS, HDR10+ | 4K@30/60fps, 1080p@30/60/240fps; gyro-EIS; HDR, 10‑bit video |
| Selfie camera | ||
|---|---|---|
| Features | HDR | Panorama |
| Single | 20 MP, 27mm (wide), 1/3.4", 0.8µm, under display | 32 MP, f/2.4, 26mm (wide), 1/2.8", 0.8µm |
| Video | 1080p@30fps | 1080p@30fps |
| Sound | ||
|---|---|---|
| 3.5mm jack | No | No |
| 35mm jack | No | No |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
| 24-bit/192kHz audio Tuned by Harman Kardon | - | |
| Comms | ||
|---|---|---|
| Bluetooth | 5.2, A2DP, LE, aptX HD | 5.2, A2DP, LE, aptX HD |
| Infrared port | Yes | - |
| NFC | Yes | Yes |
| Positioning | GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) | GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5) |
| Radio | No | No |
| USB | USB Type-C 2.0 | USB Type-C 3.1, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Ultra Wideband (UWB) support | - | |
| Battery | ||
|---|---|---|
| Charging | 120W wired, PD3.0, QC4, 100% in 15 min 50W wireless, 100% in 28 min | 65W wired, PD, 40% in 10 min 30W wireless, 100% in 80 min 10W reverse wireless |
| Type | Li-Po 4500 mAh | Li-Po 4500 mAh |
| Misc | ||
|---|---|---|
| Colors | Ceramic Black, Ceramic White, Shadow Gray | Gloss Black, Blue, White, Cosmic Mocha, Mars Edition, Photographer Edition |
| Models | 2106118C | CPH2173, PEEM00, OPG03 |
| Price | About 660 EUR | About 200 EUR |
| Tests | ||
|---|---|---|
| Battery life | - | Endurance rating 81h |
| Camera | - | Photo / Video |
| Display | - | Contrast ratio: Infinite (nominal) |
| Loudspeaker | - | -25.4 LUFS (Very good) |
| Performance | - | AnTuTu: 656467 (v8) GeekBench: 3316 (v5.1) GFXBench: 33fps (ES 3.1 onscreen) |
Xiaomi Mix 4
- Significantly faster wired and wireless charging
- Potentially higher peak display brightness
- Slightly faster CPU clock speed with Snapdragon 888+
- Battery capacity not specified
- Display refresh rate not specified
Oppo Find X3 Pro
- Proven 81-hour endurance rating
- Established camera system with innovative features
- Well-rounded flagship experience
- Slower charging speeds compared to the Mix 4
- Lower peak brightness than potential Mix 4
Display Comparison
The Oppo Find X3 Pro boasts a measured peak brightness of 774 nits, a respectable figure, but the Xiaomi Mix 4’s display specifications are less detailed, leaving room for speculation regarding peak brightness. Both devices likely utilize high-quality OLED panels with infinite contrast ratios. The absence of refresh rate data for the Mix 4 is notable; the Find X3 Pro’s panel is expected to be 120Hz. Bezels are expected to be minimal on both, reflecting the premium positioning of both devices.
Camera Comparison
Both devices are described as having 'Photo / Video' capabilities, lacking specific details. The Oppo Find X3 Pro is known for its innovative camera system, including a wide-angle lens with a freeform surface. Without sensor size or aperture information for the Mix 4, it’s difficult to make a direct comparison. The Find X3 Pro’s camera system is likely more mature and refined, given its established reputation. We can assume both phones offer a comprehensive suite of camera features, but the Mix 4’s image processing style remains unknown.
Performance
Both phones are powered by the Qualcomm Snapdragon 888 series, but the Xiaomi Mix 4 features the Snapdragon 888+ 5G (5nm) clocked slightly higher at 2.99 GHz versus the Find X3 Pro’s 2.84 GHz Snapdragon 888 (5nm). While the core architecture is identical (1x Cortex-X1, 3x Cortex-A78, 4x Cortex-A55), the higher clock speed on the Mix 4 suggests a marginal performance advantage in CPU-intensive tasks. Both utilize LPDDR5 RAM, but the specific speed isn’t detailed. Thermal management will be crucial, as the Snapdragon 888 series is known to generate heat under sustained load.
Battery Life
The Oppo Find X3 Pro has an endurance rating of 81 hours, indicating solid battery life. The Xiaomi Mix 4’s battery capacity is not specified, but its charging capabilities are its standout feature. The Mix 4 supports 120W wired charging, achieving a 100% charge in just 15 minutes, and 50W wireless charging, reaching 100% in 28 minutes. In contrast, the Find X3 Pro offers 65W wired charging (40% in 10 minutes) and 30W wireless charging (100% in 80 minutes). The Mix 4’s charging speed is significantly faster, but the Find X3 Pro’s endurance rating suggests comparable real-world usage despite potentially smaller battery capacity.
Buying Guide
Buy the Xiaomi Mix 4 if you need the absolute fastest charging available in a flagship smartphone and value a potentially brighter display for outdoor visibility. Buy the Oppo Find X3 Pro if you prioritize a well-rounded experience with a proven 81-hour endurance rating and a potentially more refined camera experience, and aren't as concerned with record-breaking charging speeds.