Screen size
K40SWinner: 6.1"+6.4%
W10 Alpha5.7"
Quick verdict
K40S leads the measured specs 9-3.
Measured wins
K40S
9
spec wins
Overall winner
Ties
5
equal specs
W10 Alpha
3
spec wins
Screen size
Technology
K40S
GSM / HSPA / LTE
W10 Alpha
GSM / HSPA / LTE
2G bands
K40S
GSM 850 / 900 / 1800 / 1900
W10 Alpha
GSM 850 / 900 / 1800 / 1900
3G bands
K40S
HSDPA 850 / 900 / 1900 / 2100
W10 Alpha
HSDPA 850 / 900 / 2100
4G bands
K40S
1, 3, 7, 8, 20
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
W10 Alpha
1, 3, 5, 8, 40, 41
Speed
K40S
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
W10 Alpha
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat13 600/150 Mbps
Announced
K40S
2019, August. Released 2019, September
W10 Alpha
2020, February 19. Released 2020, February 19
Status
K40S
Discontinued
W10 Alpha
Discontinued
Dimensions
K40S
156.3 x 73.9 x 8.6 mm (6.15 x 2.91 x 0.34 in)
W10 Alpha
147.3 x 71 x 8.9 mm (5.80 x 2.80 x 0.35 in)
Weight
K40S
186 g (6.56 oz)
W10 Alpha
170 g (6.00 oz)
SIM
K40S
· Nano-SIM· Nano-SIM + Nano-SIM
W10 Alpha
Nano-SIM + Nano-SIM
Other
K40S
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
W10 Alpha
-
Type
K40S
IPS LCD
W10 Alpha
IPS LCD
Size
K40S
6.1 inches, 92.9 cm2 (~80.4% screen-to-body ratio)
W10 Alpha
5.71 inches, 81.7 cm2 (~78.1% screen-to-body ratio)
Resolution
K40S
720 x 1520 pixels, 19:9 ratio (~276 ppi density)
W10 Alpha
720 x 1512 pixels, 19:9 ratio (~293 ppi density)
OS
K40S
Android 9.0 (Pie), upgradable to Android 10
W10 Alpha
Android 9.0 (Pie)
Chipset
K40S
Mediatek MT6762 Helio P22 (12 nm)
W10 Alpha
Unisoc SC9863A (28 nm)
CPU
K40S
Octa-core 2.0 GHz Cortex-A53
W10 Alpha
Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)
GPU
K40S
PowerVR GE8320
W10 Alpha
IMG8322
Card slot
K40S
microSDXC (dedicated slot)
W10 Alpha
microSDXC (dedicated slot)
Internal
K40S
32GB 2GB RAM, 32GB 3GB RAM
W10 Alpha
32GB 3GB RAM
Other
K40S
eMMC 5.1
W10 Alpha
eMMC 5.1
Dual
K40S
13 MP, f/2.2, 26mm (wide), PDAF 5 MP, (ultrawide)
W10 Alpha
-
Features
K40S
LED flash, panorama, HDR
W10 Alpha
LED flash, panorama, HDR
Video
K40S
1080p@30fps
W10 Alpha
1080p@30fps
Single
K40S
-
W10 Alpha
8 MP, AF
Single
K40S
13 MP, f/2.0, 1/3.1", 1.12µm
W10 Alpha
8 MP
Video
K40S
1080p@30fps
W10 Alpha
720p@30fps
Loudspeaker
K40S
Yes
W10 Alpha
Yes
3.5mm jack
K40S
Yes
W10 Alpha
Yes
WLAN
K40S
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
W10 Alpha
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
K40S
5.0, A2DP, LE
W10 Alpha
4.1, A2DP, LE
Positioning
K40S
GPS, GLONASS
W10 Alpha
GPS
NFC
K40S
Yes (market/region dependent)
W10 Alpha
No
Radio
K40S
No
W10 Alpha
FM radio
USB
K40S
microUSB 2.0, OTG
W10 Alpha
microUSB 2.0, OTG
Sensors
K40S
Fingerprint (rear-mounted), accelerometer, proximity
W10 Alpha
Accelerometer, proximity
Type
K40S
Li-Po 3500 mAh, non-removable
W10 Alpha
Li-Po 3450 mAh
Colors
K40S
New Aurora Black, New Moroccan Blue
W10 Alpha
Black, Blue
Models
K40S
LMX430HM, LM-X430
W10 Alpha
LMX210, LMX210LMW, LM-X210LMW
Price
K40S
About 160 EUR
W10 Alpha
About 130 EUR