Screen size
K51S6.6"
K52Winner: 6.6"+0.8%
Quick verdict
K52 leads the measured specs 5-2.
Measured wins
K51S
2
spec wins
Ties
10
equal specs
K52
5
spec wins
Overall winner
Screen size
Technology
K51S
GSM / HSPA / LTE
K52
GSM / HSPA / LTE
2G bands
K51S
GSM 850 / 900 / 1800 / 1900
K52
GSM 850 / 900 / 1800 / 1900
3G bands
K51S
HSDPA 850 / 900 / 1900 / 2100
K52
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, HSDPA 850 / 900 / 1900 / 2100 - Australia
4G bands
K51S
1, 3, 7, 8, 20, 28, 38
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
Storage
equal specsMain camera
Front camera
equal specsBattery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
K52
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 38, 66 - International, 1, 3, 5, 7, 8, 20, 28, 38, 39, 40, 41 - Australia
Speed
K51S
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
K52
HSPA, LTE
Announced
K51S
2020, February 18. Released 2020, April 27
K52
2020, September 23. Released 2020, November 23
Status
K51S
Discontinued
K52
Discontinued
Dimensions
K51S
165.2 x 76.7 x 8.3 mm (6.50 x 3.02 x 0.33 in)
K52
165 x 76.7 x 8.4 mm (6.50 x 3.02 x 0.33 in)
Weight
K51S
194.5 g (6.88 oz)
K52
188 g (6.63 oz)
SIM
K51S
· Nano-SIM· Nano-SIM + Nano-SIM
K52
Nano-SIM + Nano-SIM
Other
K51S
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
K52
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
K51S
IPS LCD
K52
IPS LCD
Size
K51S
6.55 inches, 93.6 cm2 (~73.8% screen-to-body ratio)
K52
6.6 inches, 105.2 cm2 (~83.1% screen-to-body ratio)
Resolution
K51S
720 x 1600 pixels, 20:9 ratio (~282 ppi density)
K52
720 x 1600 pixels, 20:9 ratio (~266 ppi density)
Protection
K51S
Scratch-resistant glass
K52
-
OS
K51S
Android 9.0 (Pie)
K52
Android 10
Chipset
K51S
Mediatek MT6765 Helio P35 (12 nm)
K52
Mediatek MT6765 Helio P35 (12 nm)
CPU
K51S
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
K52
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU
K51S
PowerVR GE8320
K52
PowerVR GE8320
Card slot
K51S
microSDXC (dedicated slot)
K52
microSDXC
Internal
K51S
64GB 3GB RAM
K52
64GB 4GB RAM
Other
K51S
eMMC 5.1
K52
eMMC 5.1
Quad
K51S
32 MP, (wide), PDAF 5 MP, f/2.2, 115˚, (ultrawide) 2 MP (macro) Auxiliary lens
K52
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 5 MP, f/2.2, 115˚ (ultrawide), 1/5.0", 1.12µm 2 MP (macro) Auxiliary lens
Features
K51S
LED flash, panorama, HDR
K52
Dual-LED flash, panorama, HDR
Video
K51S
1080p@30fps
K52
1080p@30fps
Single
K51S
13 MP, 1/3.1", 1.12µm
K52
13 MP, f/2.0, 27mm (wide), 1/3.1", 1.12µm
Video
K51S
1080p@30fps
K52
1080p@30fps
Loudspeaker
K51S
Yes
K52
Yes
3.5mm jack
K51S
Yes
K52
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
K52
Wi-Fi 802.11 b/g/n or Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
K51S
5.0, A2DP, LE
K52
5.0, A2DP, LE
Positioning
K51S
GPS
K52
GPS
NFC
K51S
Yes
K52
Yes
Radio
K51S
No
K52
No
USB
K51S
USB Type-C 2.0, OTG
K52
USB Type-C 3.1, OTG
Sensors
K51S
Fingerprint (rear-mounted), accelerometer, proximity, compass
K52
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
K51S
Li-Po 4000 mAh
K52
Li-Po 4000 mAh
Colors
K51S
Titanium, Pink, Blue, Red
K52
White, Blue, Red
Models
K51S
LMK510EMW, LM-K510EMW, LM-K510
K52
LMK520, LM-K520, LMK520E, LM-K520E, LMK520Y, LM-K520Y, LMK520H, LM-K520H
Price
K51S
About 200 EUR
K52
About 220 EUR