Product
Realme X3
Realme X3
Apple iPhone 6s
Apple iPhone 6s
Battery
Charging 30W wired, 100% in 55 min -
Stand-by - Up to 240 h (3G)
Talk time - Up to 14 h (3G)
Type 4200 mAh Li-Ion 1715 mAh, non-removable (6.91 Wh)
Body
Build Glass front (Gorilla Glass 5), glass back, plastic frame Glass front (Corning-made glass), aluminum back, aluminum frame
Dimensions 163.8 x 75.8 x 8.9 mm (6.45 x 2.98 x 0.35 in) 138.3 x 67.1 x 7.1 mm (5.44 x 2.64 x 0.28 in)
SIM Nano-SIM + Nano-SIM Nano-SIM
Weight 202 g (7.13 oz) 143 g (5.04 oz)
  - Apple Pay (Visa, MasterCard, AMEX certified)
Comms
Bluetooth 5.0, A2DP, LE 4.2, A2DP, LE
NFC No Yes (Apple Pay only)
Positioning GPS (L1+L5), GLONASS, BDS, GALILEO, QZSS GPS, GLONASS, GALILEO, QZSS
Radio No No
USB USB Type-C 2.0 Lightning, USB 2.0
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, hotspot
Display
Protection Corning Gorilla Glass 5 Ion-strengthened glass, oleophobic coating
Resolution 1080 x 2400 pixels, 20:9 ratio (~399 ppi density) 750 x 1334 pixels, 16:9 ratio (~326 ppi density)
Size 6.6 inches, 105.2 cm2 (~84.7% screen-to-body ratio) 4.7 inches, 60.9 cm2 (~65.6% screen-to-body ratio)
Type IPS LCD, 120Hz IPS LCD, 500 nits
  - 3D Touch
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
Launch
Announced 2020, June 25 2015, September 09. Released 2015, September 25
Status Available. Released 2020, June 30 Discontinued
Main Camera
Features LED flash, HDR, panorama Dual-LED dual-tone flash, HDR
Quad 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 12 MP, f/2.5, 51mm (telephoto), PDAF, 2x optical zoom 8 MP, f/2.3, 119˚, 16mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) -
Single - 12 MP, f/2.2, 29mm (standard), 1/3.0", 1.22µm, PDAF
Video 4K@30/60fps, 1080p@30/60fps, 720p@960fps; gyro-EIS 4K@30fps, 1080p@60fps,1080p@120fps, 720p@240fps
Memory
Card slot No No
Internal 128GB 6GB RAM, 128GB 8GB RAM 16GB 2GB RAM, 32GB 2GB RAM, 64GB 2GB RAM, 128GB 2GB RAM
  UFS 3.0 -
Misc
Colors Glacier Blue, Arctic White Space Gray, Silver, Gold, Rose Gold
Models RMX2142, RMX2081, RMX2085, RMX2083 A1633, A1688, A1691, A1700, iPhone8,1
SAR - 1.14 W/kg (head)     1.14 W/kg (body)    
SAR EU - 0.87 W/kg (head)     0.98 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100
4G bands 1, 3, 5, 8, 38, 39, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29 - A1688
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps, EV-DO Rev.A 3.1 Mbps
Technology GSM / HSPA / LTE GSM / CDMA / HSPA / EVDO / LTE
  - 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41 - A1687
Platform
Chipset Qualcomm SM8150 Snapdragon 855+ (7 nm) Apple A9 (14/16 nm - maker dependant)
CPU Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485) Dual-core 1.84 GHz Twister
GPU Adreno 640 (700 MHz) PowerVR GT7600 (six-core graphics)
OS Android 10, upgradable to Android 11, Realme UI 2.0 iOS 9, upgradable to iOS 15.8.4
Selfie camera
Dual 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm 8 MP, f/2.2, 105˚ (ultrawide), 1/4.0", 1.12µm -
Features Panorama Face detection, HDR, panorama
Single - 5 MP, f/2.2, 31mm (standard)
Video 1080p@30fps, gyro-EIS 720p@30fps
Sound
3.5mm jack No Yes
Loudspeaker Yes Yes
  24-bit/192kHz Hi-Res audio 16-bit/44.1kHz audio
Tests
Audio quality - Noise -93.8dB / Crosstalk -73.2dB
Battery (old) - Endurance rating 62h
Camera - Photo / Video
Display - Contrast ratio: 1481 (nominal), 3.783 (sunlight)
Loudspeaker - Voice 66dB / Noise 64dB / Ring 65dB
Performance - Basemark OS II 2.0: 2195