Product
Realme X2
Realme X2
Apple iPhone 4s
Apple iPhone 4s
Battery
Charging 30W wired, 67% in 30 min -
Stand-by - Up to 200 h (3G)
Talk time - Up to 8 h (3G)
Type 4000 mAh, non-removable Li-Po 1432 mAh, non-removable (5.3 Wh)
Body
Build Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame Glass front (Corning-made glass), glass back, stainless steel frame
Dimensions 158.7 x 75.2 x 8.6 mm (6.25 x 2.96 x 0.34 in) 115.2 x 58.6 x 9.3 mm (4.54 x 2.31 x 0.37 in)
SIM Nano-SIM + Nano-SIM Micro-SIM
Weight 182 g (6.42 oz) 140 g (4.94 oz)
  - Scratch-resistant glass back panel
Comms
Bluetooth 5.0, A2DP, LE 4.0, A2DP, LE
NFC Yes -
Positioning GPS, GLONASS, GALILEO, BDS GPS, A-GPS, GLONASS
Radio No No
USB USB Type-C 2.0, OTG 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 b/g/n, hotspot
Display
Protection Corning Gorilla Glass 5 Corning Gorilla Glass, oleophobic coating
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) 640 x 960 pixels, 3:2 ratio (~330 ppi density)
Size 6.4 inches, 100.5 cm2 (~84.3% screen-to-body ratio) 3.5 inches, 36.5 cm2 (~54.0% screen-to-body ratio)
Type Super AMOLED IPS LCD
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Accelerometer, gyro, proximity, compass
Launch
Announced 2019, September 24. Released 2019, September 2011, October 04. Released 2011, October 14
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, panorama, HDR
Quad 64 MP, f/1.8, (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.3, 13mm (ultrawide) 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) -
Single - 8 MP, f/2.4, 35mm (standard), 1/3.2", 1.4µm, AF
Video 4K@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) No
Internal 64GB 4GB RAM, 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM 8GB 512MB RAM, 16GB 512MB RAM, 32GB 512MB RAM, 64GB 512MB RAM
  UFS 2.1 -
Misc
Colors Pearl White, Pearl Blue, Pearl Green Black, White
Models RMX1992, RMX1993, RMX1991 A1431, A1387, iPhone4,1
SAR - 1.18 W/kg (head)     0.98 W/kg (body)    
SAR EU - 0.99 W/kg (head)     0.99 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 3, 4, 5, 8, 34, 38, 39, 40, 41 - China -
Speed HSPA, LTE HSPA 14.4/5.76 Mbps
Technology GSM / CDMA / HSPA / EVDO / LTE GSM / CDMA / HSPA / EVDO
  1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - EMEA CDMA2000 1xEV-DO
Our Tests
Audio quality Noise -92.6dB / Crosstalk -88.1dB -
Battery (old) Endurance rating 105h -
Camera Photo / Video -
Display 432 nits max brightness (measured) -
Loudspeaker -28.0 LUFS (Good) -
Performance AnTuTu: 215578 (v7), 257443 (v8) GeekBench: 6926 (v4.4), 1750 (v5.1) GFXBench: 13fps (ES 3.1 onscreen) -
Platform
Chipset Qualcomm SDM730 Snapdragon 730G (8 nm) Apple A5 (45 nm)
CPU Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver) Dual-core 1.0 GHz Cortex-A9
GPU Adreno 618 PowerVR SGX543MP2
OS Android 9.0 (Pie), upgradable to Android 10, Realme UI iOS 5, upgradable to iOS 9.3.6
Selfie camera
Features HDR -
Single 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm VGA, videocalling over Wi-Fi and 3G
Video 1080p@30fps 480p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
Tests
Audio quality - Noise -91.2dB / Crosstalk -93.0dB
Battery (old) - Endurance rating 45h
Camera - Photo / Video
Display - Contrast ratio: 1261:1 (nominal) / 2.269:1 (sunlight)
Loudspeaker - Voice 65dB / Noise 64dB / Ring 74dB