Product
Oppo A12s
Oppo A12s
Vivo Y28 (2014)
Vivo Y28 (2014)
Battery
Charging 10W wired -
Music play - Up to 32 h
Stand-by - Up to 430 h (2G) / Up to 430 h (3G)
Talk time - Up to 14 h (2G) / Up to 13 h (3G)
Type Li-Po 4230 mAh 2100 mAh, removable
Body
Build Glass front, plastic back, plastic frame -
Dimensions 155.9 x 75.5 x 8.3 mm (6.14 x 2.97 x 0.33 in) 137.4 x 68.6 x 9.8 mm (5.41 x 2.70 x 0.39 in)
SIM Nano-SIM + Nano-SIM Micro-SIM
Weight 165 g (5.82 oz) 156 g (5.50 oz)
Comms
Bluetooth 5.0, A2DP, LE 4.0, A2DP, EDR
Infrared port - Yes
NFC No No
Positioning GPS, GLONASS, BDS GPS
Radio FM radio FM radio
USB microUSB 2.0, OTG microUSB 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 3 -
Resolution 720 x 1520 pixels, 19:9 ratio (~271 ppi density) 540 x 960 pixels, 16:10 ratio (~216 ppi density)
Size 6.2 inches, 95.9 cm2 (~81.5% screen-to-body ratio) 4.7 inches, 64.2 cm2 (~68.1% screen-to-body ratio)
Type IPS LCD, 450 nits (typ) IPS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Accelerometer, proximity, compass
Launch
Announced 2020, July 14 2014, December. Released 2014, December
Status Available. Released 2020, July 26 Discontinued
Main Camera
Dual 13 MP, f/2.2, (wide), 1/3.1", 1.12µm, PDAF 2 MP, f/2.4, (depth) -
Features LED flash, HDR, panorama LED flash
Single - 8 MP, AF
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 32GB 3GB RAM 8GB 1GB RAM
  eMMC 5.1 -
Misc
Colors Deep Blue, Flowing Silver White
Models - Y28
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41 -
Speed HSPA, LTE HSPA 21.1/5.76 Mbps
Technology GSM / HSPA / LTE GSM / HSPA
Platform
Chipset Mediatek MT6765 Helio P35 (12 nm) Mediatek MT6582 (28 nm)
CPU Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Quad-core 1.3 GHz Cortex-A7
GPU PowerVR GE8320 Mali-400MP2
OS Android 9.0 (Pie), ColorOS 6.1 Android 4.2.2 (Jelly Bean)
Selfie camera
Features HDR -
Single 5 MP, f/2.4, 1/5.0", 1.12µm 5 MP
Video
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes