Screen size
equal specsK50S6.5"
Q516.5"
Quick verdict
K50S leads the measured specs 2-1.
Measured wins
K50S
2
spec wins
Overall winner
Ties
15
equal specs
Q51
1
spec wins
Screen size
equal specsTechnology
K50S
GSM / HSPA / LTE
Q51
GSM / HSPA / LTE
2G bands
K50S
GSM 850 / 900 / 1800 / 1900
Q51
GSM 850 / 900 / 1800 / 1900
3G bands
K50S
HSDPA 850 / 900 / 1900 / 2100
Q51
HSDPA 850 / 900 / 1900 / 2100
4G bands
K50S
1, 3, 7, 8, 20
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
equal specsRAM
equal specsStorage
equal specsMain camera
equal specsFront camera
equal specsBattery
equal specsWired 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
Q51
1, 3, 7, 8, 20
Speed
K50S
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Q51
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/75 Mbps
Announced
K50S
2019, August. Released 2019, September
Q51
2020, February 25. Released 2020, February 26
Status
K50S
Discontinued
Q51
Discontinued
Dimensions
K50S
165.8 x 77.5 x 8.2 mm (6.53 x 3.05 x 0.32 in)
Q51
164.5 x 77.5 x 8.4 mm (6.48 x 3.05 x 0.33 in)
Weight
K50S
194 g (6.84 oz)
Q51
-
SIM
K50S
· Nano-SIM· Nano-SIM + Nano-SIM
Q51
Nano-SIM + Nano-SIM
Other
K50S
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Q51
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
K50S
IPS LCD
Q51
IPS LCD
Size
K50S
6.5 inches, 105.5 cm2 (~82.1% screen-to-body ratio)
Q51
6.5 inches, 105.5 cm2 (~82.7% screen-to-body ratio)
Resolution
K50S
720 x 1520 pixels, 19:9 ratio (~259 ppi density)
Q51
720 x 1520 pixels, 19:9 ratio (~259 ppi density)
OS
K50S
Android 9.0 (Pie)
Q51
Android 10
Chipset
K50S
Mediatek MT6762 Helio P22 (12 nm)
Q51
Mediatek MT6762 Helio P22 (12 nm)
CPU
K50S
Octa-core 2.0 GHz Cortex-A53
Q51
Octa-core 2.0 GHz Cortex-A53
GPU
K50S
PowerVR GE8320
Q51
PowerVR GE8320
Card slot
K50S
microSDXC (dedicated slot)
Q51
microSDXC (dedicated slot)
Internal
K50S
32GB 3GB RAM
Q51
32GB 3GB RAM
Other
K50S
eMMC 5.1
Q51
eMMC 5.1
Triple
K50S
13 MP, f/2.2, 26mm (wide), PDAF 5 MP, f/2.2, 115˚ (ultrawide) Auxiliary lens
Q51
13 MP, (wide), PDAF 5 MP, 13mm (ultrawide) Auxiliary lens
Features
K50S
LED flash, panorama, HDR
Q51
LED flash, panorama, HDR
Video
K50S
1080p@30fps
Q51
1080p@30fps
Single
K50S
13 MP, f/2.0, 1/3.1", 1.12µm
Q51
13 MP, (wide), 1/3.1", 1.12µm
Video
K50S
1080p@30fps
Q51
1080p@30fps
Loudspeaker
K50S
Yes
Q51
Yes, with stereo speakers
3.5mm jack
K50S
Yes
Q51
Yes
WLAN
K50S
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Q51
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Bluetooth
K50S
5.0, A2DP, LE
Q51
5.0, A2DP, LE
Positioning
K50S
GPS, GLONASS
Q51
GPS
NFC
K50S
Yes (market/region dependent)
Q51
Yes
Radio
K50S
FM radio
Q51
No
USB
K50S
USB Type-C 2.0, OTG
Q51
USB Type-C 2.0
Sensors
K50S
Fingerprint (rear-mounted), accelerometer, proximity
Q51
Fingerprint (rear-mounted), accelerometer, proximity, compass
Type
K50S
Li-Po 4000 mAh, non-removable
Q51
Li-Po 4000 mAh
Colors
K50S
New Aurora Black, New Moroccan Blue
Q51
Frozen White, Moonlight Titanium
Models
K50S
LMX540HM, LM-X540, LM-X540BMW, LMX540BMW
Q51
LM-Q510N
Price
K50S
About 200 EUR
Q51
About 240 EUR