Xiaomi Mix 4 vs vivo X70 Pro+: Which Snapdragon 888+ Flagship Reigns Supreme?
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🏆 Quick Verdict
For users prioritizing blazing-fast charging and a minimalist design, the Xiaomi Mix 4 is the clear winner. Its 120W wired and 50W wireless charging capabilities are unmatched. However, the vivo X70 Pro+ offers a more refined camera experience and slightly better battery endurance, making it ideal for photography enthusiasts.
| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Mix 4 | vivo X70 Pro+ |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 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, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42, 66 |
| 5G bands | 1, 3, 5, 8, 28, 41, 77, 78, 79 SA/NSA/Sub6 | 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA - International |
| Speed | HSPA, LTE, 5G | HSPA, LTE-A, 5G |
| Technology | GSM / CDMA / HSPA / EVDO / LTE / 5G | GSM / CDMA / HSPA / EVDO / LTE / 5G |
| CDMA2000 1xEV-DO | 1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79 SA/NSA - China | |
| Launch | ||
|---|---|---|
| Announced | 2021, August 10 | 2021, September 09 |
| Status | Available. Released 2021, August 16 | Available. Released 2021, September 17 |
| Body | ||
|---|---|---|
| Build | Glass front (Gorilla Glass Victus), ceramic back, aluminum frame | - |
| Dimensions | 162.6 x 75.4 x 8 mm (6.40 x 2.97 x 0.31 in) | 164.5 x 75.2 x 8.9 mm (6.48 x 2.96 x 0.35 in) |
| SIM | Nano-SIM + Nano-SIM | Dual SIM (Nano-SIM, dual stand-by) |
| Weight | 225 g (7.94 oz) | 209 g / 213 g (7.37 oz) |
| IP53, dust and splash resistant | IP68 dust/water resistant (up to 1.5m for 30 min) | |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass Victus | - |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) | 1440 x 3200 pixels, 20:9 ratio (~517 ppi density) |
| Size | 6.67 inches, 107.4 cm2 (~87.6% screen-to-body ratio) | 6.78 inches, 111.4 cm2 (~90.1% screen-to-body ratio) |
| Type | AMOLED, 1B colors, 120Hz, HDR10+, Dolby Vision, 800 nits (HBM) | LTPO AMOLED, 1B colors, 120Hz, HDR10+, 500 nits (typ), 1000 nits (HBM), 1500 nits (peak) |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x2.99 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) | Octa-core (1x3.0 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, Funtouch OS 12 (International), OriginOS 1.0 (China) |
| 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 12GB RAM |
| UFS 3.1 | UFS 3.1 | |
| Main Camera | ||
|---|---|---|
| Features | Laser AF, color spectrum sensor, Dual-LED flash, HDR, panorama | Zeiss optics, Zeiss T* lens coating, Pixel Shift, dual-LED dual-tone flash, HDR, panorama |
| Quad | - | 50 MP, f/1.6, (wide), 1/1.31", 1.2µm, PDAF, Laser AF, OIS 8 MP, f/3.4, 125mm (periscope telephoto), 1/4.4", 1.0µm, PDAF, OIS, 5x optical zoom 12 MP, f/1.6, 50mm (telephoto), 1/2.93", 1.22µm, PDAF, OIS, 2x optical zoom 48 MP, f/2.2, 14mm, 114˚ (ultrawide), 1/2.0", 0.8µm, AF, gimbal OIS |
| Single | 20 MP, 27mm (wide), 1/3.4", 0.8µm, under display | 32 MP, f/2.5, 24mm (wide), 1/2.8", 0.8µm |
| 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+ | 8K@30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR10+ |
| Selfie camera | ||
|---|---|---|
| Features | HDR | HDR |
| Single | 20 MP, 27mm (wide), 1/3.4", 0.8µm, under display | 32 MP, f/2.5, 24mm (wide), 1/2.8", 0.8µm |
| Video | 1080p@30fps | 1080p@30fps |
| Sound | ||
|---|---|---|
| 3.5mm jack | No | No |
| 35mm jack | No | - |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
| 24-bit/192kHz audio Tuned by Harman Kardon | 32-bit/192kHz audio | |
| Comms | ||
|---|---|---|
| Bluetooth | 5.2, A2DP, LE, aptX HD | 5.2, A2DP, LE, aptX HD, aptX Adaptive |
| Infrared port | Yes | 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, BDS, GALILEO, QZSS |
| 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, color spectrum |
| Ultra Wideband (UWB) support | - | |
| Battery | ||
|---|---|---|
| Charging | 120W wired, PD3.0, QC4, 100% in 15 min 50W wireless, 100% in 28 min | 55W wired 50W wireless Reverse wireless 5W reverse wired |
| Type | Li-Po 4500 mAh | Li-Po 4500 mAh, non-removable |
| Misc | ||
|---|---|---|
| Colors | Ceramic Black, Ceramic White, Shadow Gray | Black, Blue, Orange |
| Models | 2106118C | V2145A, V2114 |
| Price | About 660 EUR | About 720 EUR |
| Tests | ||
|---|---|---|
| Battery life | - | Endurance rating 84h |
| Camera | - | Photo / Video |
| Display | - | Contrast ratio: Infinite (nominal) |
| Loudspeaker | - | -24.8 LUFS (Very good) |
| Performance | - | AnTuTu: 837833 (v9) GeekBench: 3469 (v5.1) GFXBench: 33fps (ES 3.1 onscreen) |
Xiaomi Mix 4
- Unrivaled 120W wired charging speed
- Fast 50W wireless charging
- Potentially better thermal dissipation due to larger size
- Minimalist, bezel-less design
- Under-display camera may impact display quality
- Camera system not a primary focus
vivo X70 Pro+
- Excellent battery endurance (84h rating)
- Superior camera system with gimbal stabilization
- Balanced software experience with Funtouch OS
- Reverse wireless and wired charging
- Slower 55W wired charging
- Potentially less efficient CPU clock speed
Display Comparison
Both devices utilize the Snapdragon 888+ chipset, meaning display performance is largely dependent on panel quality and optimization. While the Mix 4’s display specs aren’t explicitly detailed, its focus on a ‘bezel-less’ design suggests a high screen-to-body ratio. The vivo X70 Pro+ boasts an ‘Infinite’ contrast ratio, indicating a high-quality AMOLED panel. The absence of refresh rate data for the Mix 4 is notable; the X70 Pro+ likely features a 120Hz panel, common for flagships of this era, offering smoother scrolling and animations. The Mix 4’s under-display camera implementation, while innovative, may slightly impact display uniformity compared to the X70 Pro+'s traditional front-facing camera.
Camera Comparison
The vivo X70 Pro+ is clearly positioned as the camera-focused device. While specific sensor details are missing, vivo’s history with gimbal stabilization and high-quality optics suggests a superior image stabilization system compared to the Mix 4. The X70 Pro+’s emphasis on ‘Photo / Video’ highlights its capabilities. The Mix 4, while likely possessing a capable camera, doesn’t emphasize this feature as strongly. The absence of detailed camera specs for the Mix 4 suggests a more generalized approach, while the X70 Pro+ likely prioritizes low-light performance and dynamic range. The X70 Pro+’s image processing style is typically more vibrant and saturated, appealing to a wider audience, while Xiaomi often aims for a more natural look.
Performance
Both phones are equipped with the Qualcomm SM8350 Snapdragon 888+ 5G (5 nm) chipset, featuring an octa-core CPU configuration. The vivo X70 Pro+ edges out the Mix 4 with a slightly higher peak CPU clock speed (3.0 GHz vs 2.99 GHz on the Cortex-X1 core). While this difference is marginal in everyday use, it *could* translate to a minor performance advantage in sustained, CPU-intensive tasks. Both utilize the same Cortex-A78 and A55 cores, meaning multi-core performance will be very similar. Thermal management will be crucial; the 5nm process helps, but the 888+ is known to generate heat. The Mix 4’s larger surface area *may* aid in heat dissipation, but this is speculative without thermal testing data.
Battery Life
The vivo X70 Pro+ boasts an endurance rating of 84 hours, indicating excellent battery life. The Mix 4’s battery capacity is not specified, but its 120W wired charging is a game-changer, achieving a full charge in just 15 minutes. The X70 Pro+’s 55W wired charging is still fast, but significantly slower. Both support 50W wireless charging, offering convenience. The Mix 4’s faster charging mitigates concerns about potentially lower battery capacity, allowing for quick top-ups throughout the day. The X70 Pro+’s reverse wireless and wired charging capabilities add further versatility, allowing it to charge other devices.
Buying Guide
Buy the Xiaomi Mix 4 if you need the absolute fastest charging speeds available, a nearly bezel-less display, and are comfortable with Xiaomi’s MIUI software. Buy the vivo X70 Pro+ if you prioritize camera versatility, a more balanced software experience with Funtouch OS, and slightly longer battery life between charges. The X70 Pro+ caters to the mobile photographer, while the Mix 4 is for the power user.