Screen size
CU915 Vu3.0"
K31Winner: 5.7"+47%
Quick verdict
K31 leads the measured specs 13-1.
Measured wins
CU915 Vu
1
spec wins
Ties
3
equal specs
K31
13
spec wins
Overall winner
Screen size
Technology
CU915 Vu
GSM / HSPA
K31
GSM / CDMA / HSPA / LTE
2G bands
CU915 Vu
GSM 850 / 900 / 1800 / 1900
K31
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
3G bands
CU915 Vu
HSDPA 850 / 1900
K31
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Speed
CU915 Vu
HSPA 3.6/0.384 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
equal specs5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
K31
HSPA, LTE
4G bands
CU915 Vu
-
K31
2, 4, 5, 12, 13, 25, 26, 41, 66, 71
Announced
CU915 Vu
2008, March. Released 2008
K31
2020, August 21. Released 2020, August 21
Status
CU915 Vu
Discontinued
K31
Discontinued
Dimensions
CU915 Vu
108 x 54.9 x 13 mm (4.25 x 2.16 x 0.51 in)
K31
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
Weight
CU915 Vu
89.6 g (3.14 oz)
K31
146 g (5.15 oz)
SIM
CU915 Vu
Mini-SIM
K31
Nano-SIM + Nano-SIM
Other
CU915 Vu
-
K31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
CU915 Vu
TFT resistive touchscreen, 256K colors
K31
IPS LCD
Size
CU915 Vu
3.0 inches, 25.6 cm2 (~43.2% screen-to-body ratio)
K31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
CU915 Vu
240 x 400 pixels, 5:3 ratio (~155 ppi density)
K31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Other
CU915 Vu
Flash UI Downloadable wallpapers
K31
-
Card slot
CU915 Vu
microSD (dedicated slot)
K31
microSDXC
Phonebook
CU915 Vu
500 entries
K31
-
Call records
CU915 Vu
40 dialed, 40 received, 40 missed calls
K31
-
Internal
CU915 Vu
128MB
K31
32GB 2GB RAM
Other
CU915 Vu
-
K31
eMMC 5.1
Single
CU915 Vu
2 MP
K31
-
Features
CU915 Vu
LED flash
K31
LED flash, panorama, HDR
Video
CU915 Vu
320p
K31
1080p@30fps
Dual
CU915 Vu
-
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
CU915 Vu
No
K31
-
Single
CU915 Vu
-
K31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
CU915 Vu
-
K31
1080p@30fps
Loudspeaker
CU915 Vu
Yes
K31
Yes
Alert types
CU915 Vu
Vibration; Downloadable polyphonic, MP3 ringtones, composer
K31
-
3.5mm jack
CU915 Vu
No
K31
Yes
WLAN
CU915 Vu
No
K31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
CU915 Vu
1.2, A2DP
K31
5.0, A2DP, LE
Positioning
CU915 Vu
No
K31
GPS
Radio
CU915 Vu
No
K31
No
USB
CU915 Vu
2.0
K31
microUSB 2.0
NFC
CU915 Vu
-
K31
No
Sensors
CU915 Vu
K31
Fingerprint (rear-mounted), accelerometer
Messaging
CU915 Vu
SMS, EMS, MMS, Email
K31
-
Browser
CU915 Vu
WAP 2.0/xHTML, HTML
K31
-
Games
CU915 Vu
Yes
K31
-
Java
CU915 Vu
Yes, MIDP 2.0
K31
-
Other
CU915 Vu
MP3/AAC/AAC+/eAAC+/WMA player Video player Document viewer (Word, Excel, PowerPoint, PDF) AT&T mobile TV (CU920 only) Organizer Voice memo
K31
-
Type
CU915 Vu
Removable Li-Ion 1000 mAh battery
K31
Li-Ion 3000 mAh
Stand-by
CU915 Vu
Up to 250 h
K31
-
Talk time
CU915 Vu
Up to 3 h
K31
-
Colors
CU915 Vu
Black
K31
Gray
SAR
CU915 Vu
1.26 W/kg (head) 0.51 W/kg (body)
K31
-
Price
CU915 Vu
About 100 EUR
K31
About 130 EUR
Models
CU915 Vu
-
K31
LM-K300Q, LMK300, LGL355DL
OS
CU915 Vu
-
K31
Android 10, LG UX 9.1
Chipset
CU915 Vu
-
K31
Mediatek MT6762 Helio P22 (12 nm)
CPU
CU915 Vu
-
K31
Octa-core 2.0 GHz Cortex-A53
GPU
CU915 Vu
-
K31
PowerVR GE8320