Screen size
CU500—
K31Winner: 5.7"
Quick verdict
K31 leads the measured specs 14-2.
Measured wins
CU500
2
spec wins
Ties
2
equal specs
K31
14
spec wins
Overall winner
Screen size
Technology
CU500
GSM / HSPA
K31
GSM / CDMA / HSPA / LTE
2G bands
CU500
GSM 850 / 900 / 1800 / 1900
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
3G bands
CU500
HSDPA 2100
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Speed
CU500
HSPA 1.8 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
K31
HSPA, LTE
4G bands
CU500
-
K31
2, 4, 5, 12, 13, 25, 26, 41, 66, 71
Announced
CU500
2006, July
K31
2020, August 21. Released 2020, August 21
Status
CU500
Discontinued
K31
Discontinued
Dimensions
CU500
96.5 x 49.5 x 19.3 mm (3.80 x 1.95 x 0.76 in)
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Weight
CU500
105 g (3.70 oz)
K31
146 g (5.15 oz)
SIM
CU500
Mini-SIM
K31
Nano-SIM + Nano-SIM
Other
CU500
-
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
CU500
TFT, 65K colors
K31
IPS LCD
Size
CU500
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
CU500
176 x 220 pixels
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Other
CU500
Second external TFT display, 65K colors (96 x 96 pixels)
K31
-
Card slot
CU500
microSD (dedicated slot)
K31
microSDXC
Phonebook
CU500
500 entries, Photocall
K31
-
Call records
CU500
40 dialed, 40 received, 40 missed calls
K31
-
Internal
CU500
-
K31
32GB 2GB RAM
Other
CU500
-
K31
eMMC 5.1
Single
CU500
1.3 MP
K31
-
Features
CU500
rotating lens
K31
LED flash, panorama, HDR
Video
CU500
Yes
K31
1080p@30fps
Dual
CU500
-
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
Other
CU500
No
K31
-
Single
CU500
-
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
CU500
-
K31
1080p@30fps
Loudspeaker
CU500
Yes, with stereo speakers
K31
Yes
Alert types
CU500
Vibration; Downloadable polyphonic ringtones
K31
-
3.5mm jack
CU500
No
K31
Yes
Other
CU500
External music keys
K31
-
WLAN
CU500
No
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
CU500
1.1, A2DP
K31
5.0, A2DP, LE
Positioning
CU500
No
K31
GPS
Radio
CU500
No
K31
No
USB
CU500
Proprietary
K31
microUSB 2.0
NFC
CU500
-
K31
No
Sensors
CU500
K31
Fingerprint (rear-mounted), accelerometer
Messaging
CU500
SMS, MMS, Email, Instant Messaging
K31
-
Browser
CU500
WAP 2.0/xHTML
K31
-
Games
CU500
Yes + Java downloadable
K31
-
Java
CU500
Yes, MIDP 2.0
K31
-
Other
CU500
Streaming TV, video telephony MP3/AAC/AAC+ player Predictive text input Photo editor Organizer Voice memo
K31
-
Type
CU500
Removable Li-Po 1100 mAh battery
K31
Li-Ion 3000 mAh
Stand-by
CU500
Up to 240 h
K31
-
Talk time
CU500
Up to 5 h
K31
-
Colors
CU500
Black
K31
Gray
Price
CU500
About 70 EUR
K31
About 130 EUR
Models
CU500
-
K31
LM-K300Q, LMK300, LGL355DL
OS
CU500
-
K31
Android 10, LG UX 9.1
Chipset
CU500
-
K31
Mediatek MT6762 Helio P22 (12 nm)
CPU
CU500
-
K31
Octa-core 2.0 GHz Cortex-A53
GPU
CU500
-
K31
PowerVR GE8320