Product
Realme C1 (2019)
Realme C1 (2019)
Vivo Y28 (2014)
Vivo Y28 (2014)
Battery
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-Ion 4230 mAh, non-removable 2100 mAh, removable
Body
Build Glass front (Gorilla Glass 3), plastic back, plastic frame -
Dimensions 156.2 x 75.6 x 8.2 mm (6.15 x 2.98 x 0.32 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 168 g (5.93 oz) 156 g (5.50 oz)
Comms
Bluetooth 4.2, A2DP, LE 4.0, A2DP, EDR
Infrared port - Yes
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 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 (~81.2% screen-to-body ratio) 4.7 inches, 64.2 cm2 (~68.1% screen-to-body ratio)
Type IPS LCD IPS LCD
Features
Sensors Accelerometer, proximity, compass Accelerometer, proximity, compass
Launch
Announced 2019, January. Released 2019, February 2014, December. Released 2014, December
Status Discontinued Discontinued
Main Camera
Dual 13 MP, f/2.2, AF 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 2GB RAM, 32GB 3GB RAM 8GB 1GB RAM
  eMMC 5.1 -
Misc
Colors Black, Blue White
Models MX181 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 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps HSPA 21.1/5.76 Mbps
Technology GSM / HSPA / LTE GSM / HSPA
Platform
Chipset Qualcomm SDM450 Snapdragon 450 (14 nm) Mediatek MT6582 (28 nm)
CPU Octa-core 1.8 GHz Cortex-A53 Quad-core 1.3 GHz Cortex-A7
GPU Adreno 506 Mali-400MP2
OS Android 8.1 (Oreo), ColorOS 5.2 Android 4.2.2 (Jelly Bean)
Selfie camera
Features HDR -
Single 5 MP, f/2.2 5 MP
Video
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes