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Specifications
 

Realme X

Xiaomi Redmi K20

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Realme X
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Realme X

Xiaomi Redmi K20

Network
Technology GSM / CDMA / HSPA / LTE GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  CDMA 800 & TD-SCDMA - China
3G Network HSDPA 850 / 900 / 1700(AWS) / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network 1, 3, 4, 5, 8, 34, 38, 39, 40, 41 1, 3, 5, 7, 8, 34, 38, 39, 40, 41
Speed HSPA 42.2/11.5 Mbps, LTE-A (2CA) Cat6 300/75 Mbps HSPA 42.2/5.76 Mbps, LTE-A
Launch
Announced 2019, May 2019, May
Status Available. Released 2019, July Available. Released 2019, June
Body
Dimensions 161.2 x 76 x 9.4 mm (6.35 x 2.99 x 0.37 in) 156.7 x 74.3 x 8.8 mm (6.17 x 2.93 x 0.35 in)
Weight 191 g (6.74 oz) 191 g (6.74 oz)
Build Glass front (Gorilla Glass 5), plastic back, plastic frame Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
SIM Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by)
Display
Type AMOLED capacitive touchscreen, 16M colors Super AMOLED capacitive touchscreen, 16M colors
Size 6.53 inches, 105.2 cm2 (~85.9% screen-to-body ratio) 6.39 inches, 100.2 cm2 (~86.1% screen-to-body ratio)
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~394 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
  HDR
Platform
OS Android 9.0 (Pie), upgradable to Android 10, Realme UI Android 9.0 (Pie), upgradable to Android 10, MIUI 11
Chipset Qualcomm SDM710 Snapdragon 710 (10 nm) Qualcomm SDM730 Snapdragon 730 (8 nm)
CPU Octa-core (2x2.2 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver) Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
GPU Adreno 616 Adreno 618
Memory
Card slot No No
Internal 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 8GB RAM, 256GB 8GB RAM 64GB 6GB RAM, 128GB 6GB RAM, 256GB 8GB RAM
 UFS 2.1 UFS 2.1
Main Camera
Modules 48 MP, f/1.7, (wide), 26mm (wide), 1/2.0", 0.8µm, PDAF
5 MP, f/2.4, (depth)
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
Features LED flash, HDR Dual-LED flash, HDR, panorama
Video 4K@30fps, 1080p@30fps (gyro-EIS), 1080p@120fps, 720p@960fps 4K@30fps, 1080p@30/120/240fps, 1080p@960fps
Selfie Camera
Modules Motorized pop-up 16 MP, f/2.0, 25mm (wide), 1/3.06", 1.0µm Motorized pop-up 20 MP, f/2.2, (wide), 1/3.4", 0.8µm
Features HDR HDR
Video 1080p@30fps 1080p@30fps
Sound
Loudspeaker Yes Yes
3.5mm jack Yes Yes
  24-bit/192kHz audio
Comms
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth 5.0, A2DP, LE, aptX HD 5.0, A2DP, LE, aptX HD
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS
NFC Yes (China only)
Infrared port No No
Radio FM radio FM radio
USB Type-C 1.0 reversible connector 2.0, Type-C 1.0 reversible connector, USB On-The-Go
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
  Non-removable Li-Po 3765 mAh battery Non-removable Li-Po 4000 mAh battery
Charging Fast charging 20W, 55% in 30 min (advertised)
VOOC 3.0
Fast charging 18W
Stand-by
Talk time
Misc
Colors Steam white, Punk Blue Carbon black, Red flame, Glacier blue, Pearl White
SAR 1.07 W/kg (head)     0.72 W/kg (body)    
Models RMX1901, RMX1903 M1903F10I
Price $ 163.99 / £ 257.89 / ₹ 17,990 ₹ 21,999
Tests
Performance GeekBench: 5915 (v4.4)
Display Contrast ratio: Infinite (nominal)
Loudspeaker -28.7 LUFS (Average)
Audio quality Noise -92.9dB / Crosstalk -93.3dB
Battery life Endurance rating 86h

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