Screen size
Sunny45.0"
Y51Winner: 5.5"+8.3%
Quick verdict
Y51 leads the measured specs 4-3.
Measured wins
Sunny4
3
spec wins
Ties
10
equal specs
Y51
4
spec wins
Overall winner
Screen size
Technology
Sunny4
GSM / HSPA
Y51
GSM / HSPA
2G bands
Sunny4
GSM 850 / 900 / 1800 / 1900
Y51
GSM 850 / 900 / 1800 / 1900
3G bands
Sunny4
HSDPA 850 / 900 / 1900 / 2100
Y51
HSDPA 850 / 900 / 1900 / 2100
Speed
Sunny4
HSPA 21.1/5.76 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
equal specsStorage
Main camera
equal specsFront camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Y51
HSPA 42.2/5.76 Mbps
Announced
Sunny4
2020. Released 2020
Y51
2021, January 14
Status
Sunny4
Discontinued
Y51
Available. Released 2021, January 14
Dimensions
Sunny4
146 x 73.5 x 8.7 mm (5.75 x 2.89 x 0.34 in)
Y51
146.6 x 72.3 x 9 mm (5.77 x 2.85 x 0.35 in)
Weight
Sunny4
160 g (5.64 oz)
Y51
175 g (6.17 oz)
SIM
Sunny4
Nano-SIM + Micro-SIM
Y51
Nano-SIM + Micro-SIM
Type
Sunny4
TN TFT LCD
Y51
TN LCD
Size
Sunny4
5.0 inches, 68.9 cm2 (~64.2% screen-to-body ratio)
Y51
5.45 inches, 76.7 cm2 (~72.3% screen-to-body ratio)
Resolution
Sunny4
480 x 854 pixels, 16:9 ratio (~196 ppi density)
Y51
480 x 960 pixels, 18:9 ratio (~197 ppi density)
OS
Sunny4
Android 8.1 (Oreo)
Y51
Android 10 (Go edition)
CPU
Sunny4
Quad-core 1.3 GHz Cortex-A7
Y51
Quad-core 1.3 GHz Cortex-A7
GPU
Sunny4
-
Y51
Mali-T820 MP1
Card slot
Sunny4
microSDXC
Y51
microSDXC
Internal
Sunny4
16GB 1GB RAM
Y51
8GB 1GB RAM, 16GB 1GB RAM
Other
Sunny4
eMMC 5.1
Y51
-
Single
Sunny4
5 MP
Y51
5 MP
Features
Sunny4
LED flash, HDR, panorama
Y51
LED flash, HDR
Video
Sunny4
720p@30fps
Y51
720p@30fps
Single
Sunny4
5 MP
Y51
5 MP
Features
Sunny4
LED flash
Y51
-
Video
Sunny4
Y51
Loudspeaker
Sunny4
Yes
Y51
Yes
3.5mm jack
Sunny4
Yes
Y51
Yes
WLAN
Sunny4
Wi-Fi 802.11 b/g/n
Y51
Wi-Fi 802.11 b/g/n
Bluetooth
Sunny4
4.2, A2DP, LE
Y51
4.2, A2DP
Positioning
Sunny4
GPS
Y51
GPS
NFC
Sunny4
No
Y51
No
Radio
Sunny4
FM radio
Y51
FM Radio
USB
Sunny4
microUSB 2.0
Y51
microUSB 2.0
Sensors
Sunny4
Accelerometer
Y51
Accelerometer, proximity
Type
Sunny4
Li-Ion 2200 mAh
Y51
Li-Ion 2500 mAh, removable
Colors
Sunny4
Dark Grey, Blue, Gold
Y51
Deep Grey, Gold, Mint
Price
Sunny4
About 50 EUR
Y51
About 70 EUR
Models
Sunny4
-
Y51
W-K211-TH
SAR
Sunny4
-
Y51
0.70 W/kg (head) 1.55 W/kg (body)