Screen size
K51SWinner: 6.6"+0.5%
W316.5"
Quick verdict
K51S leads the measured specs 8-2.
Measured wins
K51S
8
spec wins
Overall winner
Ties
7
equal specs
W31
2
spec wins
Screen size
Technology
K51S
GSM / HSPA / LTE
W31
GSM / HSPA / LTE
2G bands
K51S
GSM 850 / 900 / 1800 / 1900
W31
GSM 850 / 900 / 1800 / 1900
3G bands
K51S
HSDPA 850 / 900 / 1900 / 2100
W31
HSDPA 850 / 900 / 2100
4G bands
K51S
1, 3, 7, 8, 20, 28, 38
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
W31
1, 3, 5, 8, 40, 41
Speed
K51S
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
W31
HSPA, LTE
Announced
K51S
2020, February 18. Released 2020, April 27
W31
2020, November 06. Released 2020, December 23
Status
K51S
Discontinued
W31
Discontinued
Dimensions
K51S
165.2 x 76.7 x 8.3 mm (6.50 x 3.02 x 0.33 in)
W31
166.2 x 76.3 x 8.4 mm (6.54 x 3.00 x 0.33 in)
Weight
K51S
194.5 g (6.88 oz)
W31
173.6 g (6.14 oz)
SIM
K51S
· Nano-SIM· Nano-SIM + Nano-SIM
W31
Nano-SIM + Nano-SIM
Other
K51S
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
W31
-
Type
K51S
IPS LCD
W31
IPS LCD
Size
K51S
6.55 inches, 93.6 cm2 (~73.8% screen-to-body ratio)
W31
6.52 inches, 102.6 cm2 (~80.9% screen-to-body ratio)
Resolution
K51S
720 x 1600 pixels, 20:9 ratio (~282 ppi density)
W31
720 x 1600 pixels, 20:9 ratio (~269 ppi density)
Protection
K51S
Scratch-resistant glass
W31
-
OS
K51S
Android 9.0 (Pie)
W31
Android 10
Chipset
K51S
Mediatek MT6765 Helio P35 (12 nm)
W31
Mediatek MT6762 Helio P22 (12 nm)
CPU
K51S
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
W31
Octa-core 2.0 GHz Cortex-A53
GPU
K51S
PowerVR GE8320
W31
PowerVR GE8320
Card slot
K51S
microSDXC (dedicated slot)
W31
microSDXC (dedicated slot)
Internal
K51S
64GB 3GB RAM
W31
64GB 4GB RAM, 128GB 4GB RAM
Other
K51S
eMMC 5.1
W31
eMMC 5.1
Quad
K51S
32 MP, (wide), PDAF 5 MP, f/2.2, 115˚, (ultrawide) 2 MP (macro) Auxiliary lens
W31
-
Features
K51S
LED flash, panorama, HDR
W31
LED flash, panorama, HDR
Video
K51S
1080p@30fps
W31
1080p@30fps
Triple
K51S
-
W31
13 MP, (wide), 1/3.0", 1.12µm, PDAF 5 MP, (ultrawide) Auxiliary lens
Single
K51S
13 MP, 1/3.1", 1.12µm
W31
8 MP, (wide)
Video
K51S
1080p@30fps
W31
1080p@30fps
Loudspeaker
K51S
Yes
W31
Yes
3.5mm jack
K51S
Yes
W31
Yes
WLAN
K51S
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, DLNAorWi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA
W31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
K51S
5.0, A2DP, LE
W31
4.2, A2DP, LE
Positioning
K51S
GPS
W31
GPS, GLONASS
NFC
K51S
Yes
W31
No
Radio
K51S
No
W31
FM radio
USB
K51S
USB Type-C 2.0, OTG
W31
microUSB 2.0, OTG
Sensors
K51S
Fingerprint (rear-mounted), accelerometer, proximity, compass
W31
Fingerprint (rear-mounted), accelerometer, proximity
Type
K51S
Li-Po 4000 mAh
W31
Li-Po 4000 mAh
Colors
K51S
Titanium, Pink, Blue, Red
W31
Midnight Blue
Models
K51S
LMK510EMW, LM-K510EMW, LM-K510
W31
LMK315IM, LM-K315, LM-K315IM
Price
K51S
About 200 EUR
W31
About 130 EUR