Screen size
G Flex25.5"
K31Winner: 5.7"+3.5%
Quick verdict
K31 leads the measured specs 6-4.
Measured wins
G Flex2
4
spec wins
Ties
8
equal specs
K31
6
spec wins
Overall winner
Screen size
Technology
G Flex2
GSM / CDMA / HSPA / EVDO / LTE
K31
GSM / CDMA / HSPA / LTE
2G bands
G Flex2
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900 - US995 (U.S. Cellular)
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
3G bands
G Flex2
HSDPA 850 / 900 / 1900 / 2100 , CDMA2000 1xEV-DO - US995 (U.S. Cellular)
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
G Flex2
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
equal specsStorage
Main camera
equal specsFront camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
1, 3, 7, 8, 20 - H955, 2, 4, 12, 25, 26, 41 - LS996 (Sprint), 1, 2, 3, 4, 5, 7, 17 - H950 (AT&T), LTE - US995 (U.S. Cellular)
K31
2, 4, 5, 12, 13, 25, 26, 41, 66, 71
Speed
G Flex2
HSPA 42.2/21.1 Mbps, LTE Cat6 300/50 MbpsLTE, EV-DO Rev.A 3.1 Mbps - US995 (U.S. Cellular)
K31
HSPA, LTE
Announced
G Flex2
2015, January. Released 2015, February
K31
2020, August 21. Released 2020, August 21
Status
G Flex2
Discontinued
K31
Discontinued
Dimensions
G Flex2
149.1 x 75.3 x 9.4 mm (5.87 x 2.96 x 0.37 in)
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Weight
G Flex2
152 g (5.36 oz)
K31
146 g (5.15 oz)
Build
G Flex2
Glass front (Gorilla Glass 3), plastic back, plastic frame
K31
-
SIM
G Flex2
Micro-SIM
K31
Nano-SIM + Nano-SIM
Other
G Flex2
Self-healing back panel coating
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
G Flex2
Curved P-OLED
K31
IPS LCD
Size
G Flex2
5.5 inches, 82.6 cm2 (~73.5% screen-to-body ratio)
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
G Flex2
1080 x 1920 pixels, 16:9 ratio (~403 ppi density)
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Protection
G Flex2
Corning Gorilla Glass 3
K31
-
OS
G Flex2
Android 5.0.1 (Lollipop), upgradable to 6.0.1 (Marshmallow)
K31
Android 10, LG UX 9.1
Chipset
G Flex2
Qualcomm MSM8994 Snapdragon 810 (20 nm)
K31
Mediatek MT6762 Helio P22 (12 nm)
CPU
G Flex2
Octa-core (4x1.5 GHz Cortex-A53 & 4x2.0 GHz Cortex-A57)
K31
Octa-core 2.0 GHz Cortex-A53
GPU
G Flex2
Adreno 430
K31
PowerVR GE8320
Card slot
G Flex2
microSDXC (dedicated slot)
K31
microSDXC
Internal
G Flex2
16GB 2GB RAM, 32GB 3GB RAM
K31
32GB 2GB RAM
Other
G Flex2
eMMC 5.0
K31
eMMC 5.1
Single
G Flex2
13 MP, f/2.4, OIS
K31
-
Features
G Flex2
Laser AF, color spectrum sensor, Dual-LED flash, panorama, HDR
K31
LED flash, panorama, HDR
Video
G Flex2
4K@30fps, 1080p@60fps, HDR, stereo sound rec.
K31
1080p@30fps
Dual
G Flex2
-
K31
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
G Flex2
2.1 MP
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
G Flex2
1080p@30fps
K31
1080p@30fps
Loudspeaker
G Flex2
Yes
K31
Yes
3.5mm jack
G Flex2
Yes
K31
Yes
WLAN
G Flex2
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
G Flex2
4.1, A2DP, LE, aptX
K31
5.0, A2DP, LE
Positioning
G Flex2
GPS, GLONASS
K31
GPS
NFC
G Flex2
Yes
K31
No
Infrared port
G Flex2
Yes
K31
-
Radio
G Flex2
Stereo FM radio, RDS
K31
No
USB
G Flex2
microUSB 2.0 (SlimPort), OTG
K31
microUSB 2.0
Sensors
G Flex2
Accelerometer, gyro, proximity, compass
K31
Fingerprint (rear-mounted), accelerometer
Other
G Flex2
DMB TV tuner (Korean model only)
K31
-
Type
G Flex2
Li-Po 3000 mAh, non-removable
K31
Li-Ion 3000 mAh
Charging
G Flex2
18W wired, QC2
K31
-
Stand-by
G Flex2
Up to 520 h (2G) / Up to 450 h (3G)
K31
-
Talk time
G Flex2
Up to 18 h (2G) / Up to 20 h (3G)
K31
-
Colors
G Flex2
Platinum Silver, Flamenco Red
K31
Gray
Models
G Flex2
F510, LS996, H950, H955, US995, LGLS996
K31
LM-K300Q, LMK300, LGL355DL
SAR
G Flex2
1.10 W/kg (head) 1.07 W/kg (body)
K31
-
SAR EU
G Flex2
0.68 W/kg (head) 0.44 W/kg (body)
K31
-
Price
G Flex2
About 270 EUR
K31
About 130 EUR