Xiaomi Mi Mix Fold vs OnePlus Open: A Deep Dive into Foldable Performance and Value
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🏆 Quick Verdict
For most users, the OnePlus Open is the superior choice. Its Snapdragon 8 Gen 2 chipset provides a substantial performance advantage over the Mi Mix Fold’s Snapdragon 888, coupled with excellent battery life and a brighter display. While the Mi Mix Fold remains a viable option, the Open offers a more future-proof experience.
| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Mi Mix Fold | OnePlus Open |
| 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, 30, 32, 38, 39, 40, 41, 46, 48, 66, 71 |
| 5G bands | 1, 3, 28, 41, 77, 78, 79 SA/NSA | 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 38, 40, 41, 66, 71, 75, 77, 78 SA/NSA |
| Speed | HSPA, LTE, 5G | HSPA, LTE, 5G |
| Technology | GSM / CDMA / HSPA / EVDO / LTE / 5G | GSM / HSPA / LTE / 5G |
| CDMA2000 1xEV-DO | - | |
| Launch | ||
|---|---|---|
| Announced | 2021, March | 2023, October 19 |
| Status | Available. Released 2021, April 16 | Available. Released 2023, October 26 |
| Body | ||
|---|---|---|
| Build | Glass front (folded), plastic front (unfolded), glass back (Gorilla Glass 5) or ceramic back, aluminum frame | Glass front (Ceramic Guard) (folded), plastic front (unfolded), glass back or eco leather back, aluminum frame |
| Dimensions | Unfolded: 173.3 x 133.4 x 7.6 mm Folded: 173.3 x 69.8 x 17.2 mm | Unfolded: 153.4 x 143.1 x 5.8 mmFolded: 153.4 x 73.3 x 11.7 mm |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM + eSIM (max 2 at a time) |
| Weight | 317 g (Glass)332 g (Ceramic) (11.18 oz) | 239 g or 245 g (8.43 oz) |
| Display | ||
|---|---|---|
| Resolution | 1860 x 2480 pixels, 4:3 ratio (~387 ppi density) | 2268 x 2440 pixels (~426 ppi density) |
| Size | 8.01 inches, 198.7 cm2 (~85.9% screen-to-body ratio) | 7.82 inches, 196.7 cm2 (~89.6% screen-to-body ratio) |
| Type | Foldable AMOLED, 1B colors, HDR10+, Dolby Vision, 600 nits (typ), 900 nits (peak) | Foldable LTPO3 Flexi-fluid AMOLED, 1B colors, Dolby Vision, 120Hz, 2800 nits (peak) |
| Cover display: AMOLED, 90Hz, HDR10+, Dolby Vision, 650 nits (typ), 900 nits (peak) 6.52 inches, 840 x 2520 pixels, 27:9 ratio | - | |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) | Octa-core (1x3.2 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510) |
| Chipset | Qualcomm SM8350 Snapdragon 888 5G (5 nm) | Qualcomm SM8550-AB Snapdragon 8 Gen 2 (4 nm) |
| GPU | Adreno 660 | Adreno 740 |
| OS | Android 10, MIUI 12 | Android 13, upgradable to Android 15, OxygenOS 15 |
| Memory | ||
|---|---|---|
| Card slot | No | No |
| Internal | 256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM | 512GB 16GB RAM, 1TB 16GB RAM |
| UFS 3.1 | - | |
| Main Camera | ||
|---|---|---|
| Features | Color spectrum sensor, Dual-LED flash, HDR, panorama | Hasselblad Color Calibration, LED flash, HDR, panorama |
| Single | 20 MP, 27mm (wide), 1/3.4", 0.8µm | - |
| Triple | 108 MP, f/1.8, (wide), 1/1.52", 0.7µm, PDAF 8 MP, 80mm (telephoto/macro), liquid lens, PDAF, 3x optical zoom 13 MP, f/2.4, 123˚ (ultrawide), 1.12µm | 48 MP, f/1.7, 24mm (wide), 1/1.43", 1.12µm, multi-directional PDAF, OIS 64 MP, f/2.6, 70mm (telephoto), 1/2.0", 0.7µm, PDAF, OIS, 3x optical zoom 48 MP, f/2.2, 14mm, 114˚ (ultrawide), 1/2.0", 0.8µm, PDAF |
| Video | 8K@24/30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS | 4K@30/60fps, 1080p@30/60/120/240/480fps gyro-EIS, HDR10+, Dolby Vision |
| Selfie camera | ||
|---|---|---|
| Features | HDR, panorama | HDR |
| Single | 20 MP, (wide) | 20MP, f/2.2, 20mm (ultrawide), 1/4.0", 0.7µm Cover camera: 32MP, f/2.4, 22mm (ultrawide), 1/3.14", 0.7µm |
| Video | 1080p@30/60fps, 720p@120fps | 4K@30fps, 1080p@30fps, gyro-EIS |
| Sound | ||
|---|---|---|
| 3.5mm jack | No | - |
| 35mm jack | No | No |
| Loudspeaker | Yes, with stereo speakers (4 speakers) | Yes, with stereo speakers (Dolby Atmos enhanced) |
| 24-bit/192kHz audio Tuned by Harman Kardon | - | |
| Comms | ||
|---|---|---|
| Bluetooth | 5.2, A2DP, LE, aptX HD, aptX Adaptive | 5.3, A2DP, LE, aptX HD |
| Infrared port | Yes | Yes |
| NFC | Yes | Yes |
| Positioning | GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) | GPS (L1+L5), GLONASS, BDS, GALILEO (E1+E5a), QZSS |
| Radio | No | No |
| USB | USB Type-C | 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/6e/7, tri-band |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 67W wired, PD3.0, QC4, 100% in 37 min | 67W wired, PD, 100% in 42 min Reverse wired |
| Type | Li-Po 5020 mAh | Li-Po 4805 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, Ceramic | Emerald Dusk, Voyager Black, Apex Edition |
| Models | M2011J18C | CPH2551 |
| Price | About 1300 EUR | $ 1,059.99 / € 926.54 |
| SAR | - | 0.98 W/kg (head) 0.76 W/kg (body) |
Xiaomi Mi Mix Fold
- Potentially lower price point
- Established foldable design
- Faster wired charging (37 minutes)
- Older Snapdragon 888 chipset
- Likely lower peak display brightness
- Less efficient battery performance
OnePlus Open
- Significantly faster Snapdragon 8 Gen 2
- Brighter and more vibrant display (1238 nits)
- Exceptional battery life (11:59h active use)
- Slightly slower wired charging (42 minutes)
- Higher price tag
- Newer device, potential for early software bugs
Display Comparison
The OnePlus Open boasts a significantly brighter display, reaching a measured 1238 nits, compared to the Mi Mix Fold’s unspecified peak brightness. This translates to better outdoor visibility. While both are foldable OLED panels, the Open’s higher brightness and likely more refined panel calibration offer a superior viewing experience. The absence of detailed display specs for the Mi Mix Fold (like refresh rate or PWM dimming) puts it at a disadvantage. The Open’s display is likely to be more color accurate and easier on the eyes during prolonged use.
Camera Comparison
Context data is limited regarding camera specifics for both devices. However, given OnePlus’s recent camera improvements, it’s reasonable to assume the Open features a more advanced camera system. The Snapdragon 8 Gen 2’s improved ISP (Image Signal Processor) will contribute to better image processing, dynamic range, and low-light performance. The Mi Mix Fold, relying on the older Snapdragon 888, will likely exhibit slower processing and potentially more noise in challenging conditions. Without detailed sensor information, it’s difficult to make a definitive judgment, but the Open’s chipset advantage is a strong indicator of superior camera capabilities.
Performance
The core difference lies in the chipsets. The OnePlus Open’s Snapdragon 8 Gen 2 (4nm) is a generational leap over the Xiaomi Mi Mix Fold’s Snapdragon 888 (5nm). The Gen 2 features a Cortex-X3 prime core clocked at 3.2 GHz, versus the X1 in the 888 at 2.84 GHz, resulting in noticeably faster CPU performance. The newer architecture and 4nm process also provide better thermal efficiency, meaning the Open will likely sustain peak performance for longer periods without throttling. The Open’s CPU configuration (1x3.2GHz, 2x2.8GHz, 2x2.8GHz, 3x2.0GHz) is more balanced and efficient than the Mi Mix Fold’s (1x2.84GHz, 3x2.42GHz, 4x1.80GHz).
Battery Life
The OnePlus Open shines in battery endurance, achieving an active use score of 11:59h and an endurance rating of 96h. While the Mi Mix Fold’s battery capacity is unknown, the Open’s superior efficiency, thanks to the Snapdragon 8 Gen 2’s 4nm process, is a significant advantage. Both devices support 67W wired charging, with the Open taking 42 minutes to reach 100% and the Mi Mix Fold taking 37 minutes. The slightly faster charging on the Mi Mix Fold is offset by the Open’s substantially longer battery life.
Buying Guide
Buy the Xiaomi Mi Mix Fold if you prioritize a more established foldable design and are comfortable with a slightly older chipset. It’s a good option for users who want a foldable experience at a potentially lower price point. Buy the OnePlus Open if you demand top-tier performance, a brighter and more vibrant display, and longer battery life. It’s ideal for power users, gamers, and those who want the best possible foldable experience.