Product
OnePlus 9RT 5G
OnePlus 9RT 5G
Xiaomi Mi 9T
Xiaomi Mi 9T
Battery
Charging 65W wired, 100% in 29 min 18W wired
Type Li-Po 4500 mAh Li-Po 4000 mAh, non-removable
Body
Build Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame Glass front (Gorilla Glass 5), glass back, aluminum frame
Dimensions 162.2 x 74.6 x 8.3 mm (6.39 x 2.94 x 0.33 in) 156.7 x 74.3 x 8.8 mm (6.17 x 2.93 x 0.35 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 198.5 g (7.02 oz) 191 g (6.74 oz)
Comms
Bluetooth 5.2, A2DP, LE 5.0, A2DP, LE, aptX HD
NFC Yes Yes
Positioning GPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a) GPS, GLONASS, GALILEO, BDS
Radio No FM radio
USB USB Type-C 2.0, OTG USB Type-C 2.0, OTG
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, dual-band, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
Resolution 1080 x 2400 pixels, 20:9 ratio (~397 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size 6.62 inches, 106.3 cm2 (~87.9% screen-to-body ratio) 6.39 inches, 100.2 cm2 (~86.1% screen-to-body ratio)
Type AMOLED, 120Hz, HDR10+ AMOLED, HDR
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2021, October 13 2019, June 12. Released 2019, June 12
Status Available. Released 2021, October 19 Discontinued
Main Camera
Features Dual-LED flash, HDR, panorama Dual-LED flash, HDR, panorama
Quad 50 MP, f/1.8, 24mm (wide), 1/1.56”, 1.0µm, PDAF, OIS 16 MP, f/2.2, 14mm, 123˚ (ultrawide), 1/3.6", 1.0µm 2 MP, f/2.4, (macro) -
Triple - 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.4, 53mm (telephoto), 1/4.0", 1.12µm, PDAF, 2x optical zoom 13 MP, f/2.4, 12mm (ultrawide), 1/3.1", 1.12µm
Video 4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS 4K@30fps, 1080p@30/120/240fps, 1080p@960fps
Memory
Card slot No No
Internal 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM 64GB 6GB RAM, 128GB 6GB RAM, 256GB 8GB RAM
  UFS 3.1 UFS 2.0
Misc
Colors Hacker Black, Nano Silver, Blue Carbon black, Red flame, Glacier blue
Models MT2110, MT2111 M1903F10G
SAR - 1.19 W/kg (head)     1.18 W/kg (body)    
SAR EU - 1.34 W/kg (head)     1.51 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 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 - Global 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40
5G bands 1, 3, 5, 8, 28, 40, 41, 78 SA/NSA - Global -
Speed HSPA 42.2/5.76 Mbps, LTE (CA) Cat18 1200/200 Mbps, 5G HSPA, LTE
Technology GSM / CDMA / HSPA / EVDO / LTE / 5G GSM / HSPA / LTE
  CDMA2000 1xEV-DO -
Our Tests
Audio quality - Noise -93.5dB / Crosstalk -93.8dB
Battery (old) - Endurance rating 100h
Camera - Photo / Video
Display - 646 nits max brightness (measured)
Loudspeaker - -25.3 LUFS (Very good)
Performance AnTuTu: 670289 (v8) GeekBench: 3325 (v5) GFXBench: 43fps (ES 3.1 onscreen) AnTuTu: 211915 (v7), 257146 (v8) GeekBench: 6863 (v4.4), 1703 (v5.1) GFXBench: 13fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Qualcomm SDM730 Snapdragon 730 (8 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
GPU Adreno 660 Adreno 618
OS Android 11, upgradable to Android 13, OxygenOS 13 Android 9.0 (Pie), upgradable to Android 11, MIUI 12.1
Selfie camera
Features HDR HDR
Single 16 MP, f/2.4, (wide), 1/3.06", 1.0µm Motorized pop-up 20 MP, f/2.2, (wide), 1/3.4", 0.8µm
Video 1080p@30fps, gyro-EIS 1080p@30fps
Sound
3.5mm jack No Yes
Loudspeaker Yes, with stereo speakers Yes
  - 24-bit/192kHz Hi-Res audio