Product
Realme X50 5G (China)
Realme X50 5G (China)
Xiaomi Mi Mix 3
Xiaomi Mi Mix 3
Battery
Charging 30W wired, 70% in 30 min 18W wired, QC4 10W wireless
Type 4200 mAh, non-removable Li-Po 3200 mAh, non-removable
Body
Build Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame Glass front, ceramic back, aluminum frame (7000 series)
Dimensions 163.8 x 75.8 x 8.9 mm (6.45 x 2.98 x 0.35 in) 157.9 x 74.7 x 8.5 mm (6.22 x 2.94 x 0.33 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 202 g (7.13 oz) 218 g (7.69 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, aptX HD, LE
NFC Yes Yes
Positioning GPS (L1+L5), GLONASS, BDS, GALILEO GPS (L1+L5), GLONASS (L1), BDS (B1), GALILEO (E1+E5a), QZSS (L1+L5)
Radio No No
USB USB Type-C 2.0 USB Type-C
WLAN Wi-Fi 802.11 a/b/g/n/ac, 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 (~401 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size 6.57 inches, 104.2 cm2 (~83.9% screen-to-body ratio) 6.39 inches, 100.2 cm2 (~85.0% screen-to-body ratio)
Type IPS LCD, 120Hz Super AMOLED, HDR
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, compass
  - Virtual proximity sensing
Launch
Announced 2020, January 07 2018, October. Released 2018, November
Status Available. Released 2020, January Discontinued
Main Camera
Dual - 12 MP (wide), f/1.8, 1/2.55", 1.4µm, dual pixel PDAF, 4-axis OIS 12 MP (telephoto), 1/3.4", 1.0µm
Features LED flash, HDR, panorama LED flash, HDR, panorama
Quad 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 12 MP, f/3.0, 54mm (telephoto), 2x optical zoom, PDAF 8 MP, f/2.3, 13mm (ultrawide) 2 MP, f/2.4, (macro) -
Video 4K@30fps, 1080p@30/60fps; gyro-EIS 4K@30/60fps, 1080p@30/60fps, 1080p@960fps
Memory
Card slot No No
Internal 64GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 12GB RAM 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 10GB RAM
  UFS 2.1 UFS 2.1
Misc
Colors Glacier, Polar Jade Green, Sapphire Blue, Onyx Black, Forbidden City Blue
Models RMX2051, RMX2025 M1810E5A
SAR - 1.45 W/kg (head)     1.57 W/kg (body)    
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) / 1800 / 1900 / 2100 - Global
4G bands 1, 2, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 34, 38, 39, 40, 41, 66 - Global
5G bands 1, 41, 78, 79 SA/NSA -
Speed HSPA, LTE, 5G (1.9 Gbps DL) HSPA, LTE
Technology GSM / CDMA / HSPA / EVDO / LTE / 5G GSM / CDMA / HSPA / EVDO / LTE
  CDMA2000 1xEV-DO 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 34, 38, 39, 40, 41 - China
Our Tests
Audio quality - Noise -93.2dB / Crosstalk -90.6dB
Battery (old) - Endurance rating 84h
Camera - Photo / Video
Display - Contrast ratio: Infinite (nominal), 4.291(sunlight)
Loudspeaker - -29.9 LUFS (Average)
Performance - AnTuTu: 292353 (v7), 352130 (v8) GeekBench: 9065 (v4.4), 2170 (v5.1) GFXBench: 30fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm SM7250 Snapdragon 765G 5G (7 nm) Qualcomm SDM845 Snapdragon 845 (10 nm)
CPU Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
GPU Adreno 620 Adreno 630
OS Android 10, ColorOS 7 Android 9.0 (Pie), upgradable to Android 10, MIUI 12
Selfie camera
Dual 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm 8 MP, f/2.2, 17mm (ultrawide), 1/4.0", 1.12µm Manual pop-up 24 MP, f/2.0, 26mm (wide), 1/2.8", 0.9µm Manual pop-up 2 MP, depth sensor
Features HDR LED flash, HDR
Video 1080p@30fps, gyro-EIS 1080p@30fps
Sound
3.5mm jack No No
Loudspeaker Yes Yes
  24-bit/192kHz Hi-Res audio -