Screen size
equal specsK41S6.6"
K51S6.6"
Quick verdict
K51S leads the measured specs 5-1.
Measured wins
K41S
1
spec wins
Ties
11
equal specs
K51S
5
spec wins
Overall winner
Screen size
equal specsTechnology
K41S
GSM / HSPA / LTE
K51S
GSM / HSPA / LTE
2G bands
K41S
GSM 850 / 900 / 1800 / 1900
K51S
GSM 850 / 900 / 1800 / 1900
3G bands
K41S
HSDPA 850 / 900 / 1900 / 2100
K51S
HSDPA 850 / 900 / 1900 / 2100
4G bands
K41S
1, 3, 7, 8, 20, 38
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
Main camera
Front camera
Battery
equal specsWired charging
Weight
Thickness
equal specsIP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
K51S
1, 3, 7, 8, 20, 28, 38
Speed
K41S
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
K51S
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Announced
K41S
2020, February 18. Released 2020, April 27
K51S
2020, February 18. Released 2020, April 27
Status
K41S
Discontinued
K51S
Discontinued
Dimensions
K41S
165.8 x 76.5 x 8.3 mm (6.53 x 3.01 x 0.33 in)
K51S
165.2 x 76.7 x 8.3 mm (6.50 x 3.02 x 0.33 in)
Weight
K41S
191.7 g (6.77 oz)
K51S
194.5 g (6.88 oz)
SIM
K41S
· Nano-SIM· Nano-SIM + Nano-SIM
K51S
· Nano-SIM· Nano-SIM + Nano-SIM
Other
K41S
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
K51S
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
K41S
IPS LCD
K51S
IPS LCD
Size
K41S
6.55 inches, 103.6 cm2 (~81.7% screen-to-body ratio)
K51S
6.55 inches, 93.6 cm2 (~73.8% screen-to-body ratio)
Resolution
K41S
720 x 1600 pixels, 20:9 ratio (~268 ppi density)
K51S
720 x 1600 pixels, 20:9 ratio (~282 ppi density)
Protection
K41S
Scratch-resistant glass
K51S
Scratch-resistant glass
OS
K41S
Android 9.0 (Pie)
K51S
Android 9.0 (Pie)
Chipset
K41S
Mediatek MT6762 Helio P22 (12 nm)
K51S
Mediatek MT6765 Helio P35 (12 nm)
CPU
K41S
Octa-core 2.0 GHz Cortex-A53
K51S
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU
K41S
PowerVR GE8320
K51S
PowerVR GE8320
Card slot
K41S
microSDXC (dedicated slot)
K51S
microSDXC (dedicated slot)
Internal
K41S
32GB 3GB RAM
K51S
64GB 3GB RAM
Other
K41S
eMMC 5.1
K51S
eMMC 5.1
Quad
K41S
13 MP, f/2.0, 28mm (wide), PDAF 5 MP, f/2.2, 115˚, (ultrawide) 2 MP (macro) Auxiliary lens
K51S
32 MP, (wide), PDAF 5 MP, f/2.2, 115˚, (ultrawide) 2 MP (macro) Auxiliary lens
Features
K41S
LED flash, panorama, HDR
K51S
LED flash, panorama, HDR
Video
K41S
1080p@30fps
K51S
1080p@30fps
Single
K41S
8 MP
K51S
13 MP, 1/3.1", 1.12µm
Video
K41S
1080p@30fps
K51S
1080p@30fps
Loudspeaker
K41S
Yes
K51S
Yes
3.5mm jack
K41S
Yes
K51S
Yes
WLAN
K41S
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA
K51S
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, DLNAorWi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA
Bluetooth
K41S
5.0, A2DP, LE
K51S
5.0, A2DP, LE
Positioning
K41S
GPS
K51S
GPS
NFC
K41S
Yes
K51S
Yes
Radio
K41S
No
K51S
No
USB
K41S
USB Type-C 2.0, OTG
K51S
USB Type-C 2.0, OTG
Sensors
K41S
Fingerprint (rear-mounted), accelerometer, proximity, compass
K51S
Fingerprint (rear-mounted), accelerometer, proximity, compass
Type
K41S
Li-Po 4000 mAh
K51S
Li-Po 4000 mAh
Colors
K41S
Titanium, Black, White
K51S
Titanium, Pink, Blue, Red
Models
K41S
LMK410EMW, LM-K410EMW, LM-K410
K51S
LMK510EMW, LM-K510EMW, LM-K510
Price
K41S
About 220 EUR
K51S
About 200 EUR