Screen size
K4 (2017)5.0"
Q31Winner: 5.7"+12%
Quick verdict
Q31 leads the measured specs 9-2.
Measured wins
K4 (2017)
2
spec wins
Ties
6
equal specs
Q31
9
spec wins
Overall winner
Screen size
Technology
K4 (2017)
GSM / HSPA / LTE
Q31
GSM / HSPA / LTE
2G bands
K4 (2017)
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
Q31
GSM 850 / 900 / 1800 / 1900
3G bands
K4 (2017)
HSDPA 850 / 900 / 1900 / 2100
Q31
HSDPA 850 / 900 / 1900 / 2100
4G bands
K4 (2017)
1, 3, 5, 7, 8, 20
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Q31
LTE
Speed
K4 (2017)
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Q31
HSPA, LTE
Announced
K4 (2017)
2016, December. Released 2017, March
Q31
2020, September 17. Released 2020, September 25
Status
K4 (2017)
Discontinued
Q31
Discontinued
Dimensions
K4 (2017)
144.7 x 72.6 x 7.9 mm (5.70 x 2.86 x 0.31 in)
Q31
147.9 x 71 x 8.7 mm (5.82 x 2.80 x 0.34 in)
Weight
K4 (2017)
138 g (4.87 oz)
Q31
145 g (5.11 oz)
SIM
K4 (2017)
· Nano-SIM· Nano-SIM + Nano-SIM
Q31
Nano-SIM
Other
K4 (2017)
-
Q31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
K4 (2017)
IPS LCD
Q31
IPS LCD
Size
K4 (2017)
5.0 inches, 69.6 cm2 (~66.3% screen-to-body ratio)
Q31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
K4 (2017)
480 x 854 pixels, 16:9 ratio (~195 ppi density)
Q31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Protection
K4 (2017)
Corning Gorilla Glass 3
Q31
-
OS
K4 (2017)
Android 6.0.1 (Marshmallow)
Q31
Android 10
Chipset
K4 (2017)
Qualcomm MSM8909 Snapdragon 210 (28 nm)
Q31
Mediatek MT6762 Helio P22 (12 nm)
CPU
K4 (2017)
Quad-core 1.1 GHz Cortex-A7
Q31
Octa-core 2.0 GHz Cortex-A53
GPU
K4 (2017)
Adreno 304
Q31
PowerVR GE8320
Card slot
K4 (2017)
microSDHC (dedicated slot)
Q31
microSDXC
Internal
K4 (2017)
8GB/ 16GB (AT&T, Cricket), 1GB RAM
Q31
32GB 3GB RAM
Other
K4 (2017)
eMMC 4.5
Q31
eMMC 5.1
Single
K4 (2017)
5 MP, f/2.6, AF
Q31
-
Features
K4 (2017)
LED flash, HDR
Q31
LED flash, panorama, HDR
Video
K4 (2017)
720p@30fps
Q31
1080p@30fps
Dual
K4 (2017)
-
Q31
13 MP, f/1.8, 27mm (wide), 1/3.1", 1.12µm, PDAF 5 MP, f/2.2, 120˚ (ultrawide), 1/5.0", 1.12µm
Single
K4 (2017)
5 MP, f/2.7
Q31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
K4 (2017)
720p
Q31
1080p@30fps
Loudspeaker
K4 (2017)
Yes
Q31
Yes
3.5mm jack
K4 (2017)
Yes
Q31
Yes
WLAN
K4 (2017)
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Q31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
K4 (2017)
4.1, A2DP, LE
Q31
5.0, A2DP, LE
Positioning
K4 (2017)
GPS, GLONASS
Q31
GPS
NFC
K4 (2017)
No
Q31
No
Radio
K4 (2017)
FM radio, RDS
Q31
No
USB
K4 (2017)
microUSB 2.0
Q31
microUSB 2.0
Sensors
K4 (2017)
Accelerometer, proximity
Q31
Accelerometer
Type
K4 (2017)
Li-Ion 2500 mAh, removable
Q31
Li-Ion 3000 mAh
Colors
K4 (2017)
Black, Titan
Q31
Silver
Models
K4 (2017)
M160, M153, M151
Q31
LM-Q310N
Price
K4 (2017)
About 100 EUR
Q31
About 150 EUR