OnePlus 9 vs Xiaomi Mi 11
A spec-by-spec comparison of the OnePlus 9 and the Xiaomi Mi 11, taken from their full specification sheets. Green marks the better value in each measured row.
Head to head
| OnePlus 9 | Xiaomi Mi 11 |
|---|
| Price | $175 | $529 |
| Our rating | 8/10 | 8/10 |
| Battery | 4,500 mAh | 4,600 mAh |
| Wired charging | 65W | 55W |
| RAM (max) | 12 GB | — |
| Storage (max) | 256 GB | 256 GB |
| Screen size | 6.55 in | 6.81 in |
| Refresh rate | 120 Hz | 120 Hz |
| Main camera | 50 MP | 108 MP |
| Weight (lower is lighter) | 192 g | 196 g |
| Released | Mar 2021 | Feb 2021 |
Summary: OnePlus 9 is ahead on wired charging, weight (lower is lighter). Xiaomi Mi 11 is ahead on battery, screen size, main camera.
★ Which should you buy? Xiaomi Mi 11 is the stronger overall pick on the measured specs. If budget matters more than the extra capability, OnePlus 9 is the cheaper option.
Reviewed by the infozme.com Editorial Team — see how we research & rate phones.
Display
| OnePlus 9 | Xiaomi Mi 11 |
|---|
| Type | Fluid AMOLED, 120Hz, HDR10+ | AMOLED, 1B colors, 120Hz, HDR10+, 1500 nits (peak) |
| Size | 6.55 inches | 6.81 inches |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~402 ppi density) | 1440 x 3200 pixels (QHD+), 20:9 ratio (~515 ppi density) |
| Protection | Corning Gorilla Glass | Corning Gorilla Glass Victus |
Platform
| OnePlus 9 | Xiaomi Mi 11 |
|---|
| Chipset | Qualcomm SM8350 Snapdragon 888 5G (5 nm) | Qualcomm Snapdragon 888 5G (5 nm) |
| CPU | Octa-core (1x2.84 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) |
| GPU | Adreno 660 | Adreno 660 |
| OS | — | Android 11, MIUI 12 (upgradable to Android 14, HyperOS) |
Memory
| OnePlus 9 | Xiaomi Mi 11 |
|---|
| Card slot | No | — |
| Internal | 128GB 8GB RAM, 256GB 12GB RAM | — |
| Type | UFS 3.1 | — |
| RAM | — | 8GB, 12GB LPDDR5 |
| Storage | — | 128GB, 256GB UFS 3.1 |
| Card Slot | — | No |
Main Camera
| OnePlus 9 | Xiaomi Mi 11 |
|---|
| Modules | 50 MP, f/1.8, 23mm (wide), 1/1.56", 1.0µm, PDAF; 48 MP, f/2.2, 14mm (ultrawide), 1/2.0", 0.8µm; 2 MP, f/2.4, (monochrome) | 108 MP, f/1.85, 1/1.33", 0.8µm, PDAF, OIS (wide); 13 MP, f/2.4, 123˚ (ultrawide); 5 MP, f/2.4 (telemacro, AF 3-10cm) |
| Features | Hasselblad Color Calibration, Dual-LED flash, HDR, panorama | Dual-LED dual-tone flash, HDR, panorama |
| Video | 8K@30fps, 4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS | 8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240/480fps, 720p@1920fps |
Selfie Camera
| OnePlus 9 | Xiaomi Mi 11 |
|---|
| Modules | 16 MP, f/2.4, (wide), 1/3.06", 1.0µm | 20 MP, f/2.2 |
| Features | Auto-HDR | HDR, panorama |
| Video | 1080p@30fps, gyro-EIS | 1080p@30/60fps, 720p@30fps |
Battery
| OnePlus 9 | Xiaomi Mi 11 |
|---|
| Type | Li-Po 4500 mAh, non-removable | Li-Po 4600 mAh, non-removable |
| Charging | 65W wired, 100% in 29 min (advertised); 15W wireless (Qi) | 55W wired, 100% in 45 min (advertised); 50W wireless, 100% in 53 min (advertised); 10W reverse wireless |
Body
| OnePlus 9 | Xiaomi Mi 11 |
|---|
| Dimensions | 160 x 73.9 x 8.1 mm | 164.3 x 74.6 x 8.06 mm (glass) / 8.56 mm (vegan leather) |
| Weight | 192g (EU/NA), 183g (IN/CN) | 196 g (glass) / 194 g (vegan leather) |
| Build | Glass front (Gorilla Glass), glass back (Gorilla Glass), plastic frame | Glass front (Gorilla Glass Victus), glass back (Gorilla Glass 5) or eco-leather back, aluminum frame |
| Water Resistance | — | No official IP rating |
Comms
| OnePlus 9 | Xiaomi Mi 11 |
|---|
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Bluetooth | 5.2, A2DP, LE, aptX HD | 5.2, A2DP, LE, aptX HD, aptX Adaptive |
| Positioning | GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), SBAS, A-GPS | GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) |
| NFC | Yes | Yes |
| Radio | No | No |
| USB | USB Type-C 3.1, OTG | USB Type-C 2.0, OTG |
| Infrared Port | — | Yes |
Launch
| OnePlus 9 | Xiaomi Mi 11 |
|---|
| Announced | 2021, March 23 | December 28, 2020 (China) |
| Status | Released 2021, March 26 | Released February 8, 2021 (Global) |
| OS | Android 11, upgradable to Android 13, OxygenOS 13 | — |
Frequently asked questions
Which has the better battery, OnePlus 9 or Xiaomi Mi 11?
Xiaomi Mi 11 — 4,500 mAh for the OnePlus 9 versus 4,600 mAh for the Xiaomi Mi 11.
Which is lighter, OnePlus 9 or Xiaomi Mi 11?
OnePlus 9 — 192 g for the OnePlus 9 versus 196 g for the Xiaomi Mi 11.
Which is newer, OnePlus 9 or Xiaomi Mi 11?
OnePlus 9 — Mar 2021 for the OnePlus 9 versus Feb 2021 for the Xiaomi Mi 11.
Is the OnePlus 9 or the Xiaomi Mi 11 rated higher?
We rate the OnePlus 9 8/10 and the Xiaomi Mi 11 8/10.
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