Product
Realme 1
Realme 1
Vivo Y31 (2015)
Vivo Y31 (2015)
Battery
Type Li-Ion 3410 mAh, non-removable 2100 mAh, removable
Body
Build Glass front (Gorilla Glass 3), plastic back, plastic frame -
Dimensions 156.5 x 75.2 x 7.8 mm (6.16 x 2.96 x 0.31 in) 137.2 x 68.8 x 8.4 mm (5.40 x 2.71 x 0.33 in)
SIM Nano-SIM + Nano-SIM Dual SIM
Weight 155 g (5.47 oz) 137 g (4.83 oz)
Comms
Bluetooth 4.2, A2DP, LE 4.0, A2DP
NFC No No
Positioning GPS GPS
Radio FM radio FM radio
USB microUSB 2.0, OTG microUSB 2.0
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct Wi-Fi 802.11 b/g/n, hotspot
Display
Protection Corning Gorilla Glass 3 -
Resolution 1080 x 2160 pixels, 18:9 ratio (~402 ppi density) 720 x 1280 pixels, 16:9 ratio (~312 ppi density)
Size 6.0 inches, 92.9 cm2 (~78.9% screen-to-body ratio) 4.7 inches, 60.9 cm2 (~64.5% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, gyro, proximity, compass Accelerometer, proximity, compass
Launch
Announced 2018, May. Released 2018, May 2015, September. Released 2015, October
Status Discontinued Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, HDR
Single 13 MP, f/2.2, PDAF 8 MP
Video 1080p@30fps 720p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 32GB 3GB RAM, 64GB 4GB RAM, 128GB 6GB RAM 8GB 1GB RAM
  eMMC 5.1 -
Misc
Colors Diamond Black, Solar Red, Moonlight Silver White, Black
Models CPH1859, CPH1861, 1861 Y31L, Y31
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41 -
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat13 600/100 Mbps HSPA
Technology GSM / HSPA / LTE GSM / HSPA
Our Tests
Audio quality Noise -89.0dB / Crosstalk -87.3dB -
Battery (old) Endurance rating 84h -
Camera Photo / Video -
Display Contrast ratio: 1209 (nominal), 2.932 (sunlight) -
Loudspeaker Voice 64dB / Noise 70dB / Ring 89dB -
Performance AnTuTu: 138524 (v7) GeekBench: 5741 (v4.4) GFXBench: 7.5fps (ES 3.1 onscreen) -
Platform
Chipset Mediatek MT6771 Helio P60 (12 nm) Mediatek MT6580 (28 nm)
CPU Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) Quad-core 1.3 GHz Cortex-A7
GPU Mali-G72 MP3 Mali-400MP2
OS Android 8.1 (Oreo), upgradable to Android 9.0 (Pie), ColorOS 6 Android 5.1 (Lollipop), Funtouch 2.1
Selfie camera
Single 8 MP, f/2.2 2 MP
Video 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes