Screen size
KC7802.4"
Q31Winner: 5.7"+58%
Quick verdict
Q31 leads the measured specs 13-1.
Measured wins
KC780
1
spec wins
Ties
3
equal specs
Q31
13
spec wins
Overall winner
Screen size
Technology
KC780
GSM
Q31
GSM / HSPA / LTE
2G bands
KC780
GSM 900 / 1800 / 1900
Q31
GSM 850 / 900 / 1800 / 1900
GPRS
KC780
Class 12
Q31
-
EDGE
KC780
Class 12
Q31
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
-
3G bands
KC780
-
Q31
HSDPA 850 / 900 / 1900 / 2100
4G bands
KC780
-
Q31
LTE
Speed
KC780
-
Q31
HSPA, LTE
Announced
KC780
2008, October. Released 2008, November
Q31
2020, September 17. Released 2020, September 25
Status
KC780
Discontinued
Q31
Discontinued
Dimensions
KC780
107 x 52 x 13.9 mm (4.21 x 2.05 x 0.55 in)
Q31
147.9 x 71 x 8.7 mm (5.82 x 2.80 x 0.34 in)
Weight
KC780
119 g (4.20 oz)
Q31
145 g (5.11 oz)
SIM
KC780
Mini-SIM
Q31
Nano-SIM
Other
KC780
-
Q31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
KC780
TFT, 256K colors
Q31
IPS LCD
Size
KC780
2.4 inches, 17.8 cm2 (~32.1% screen-to-body ratio)
Q31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
KC780
240 x 320 pixels, 4:3 ratio (~167 ppi density)
Q31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Other
KC780
Q31
-
Card slot
KC780
microSDHC (dedicated slot)
Q31
microSDXC
Phonebook
KC780
1000 contacts, Photo call
Q31
-
Call records
KC780
40 dialed, 40 received, 40 missed calls
Q31
-
Internal
KC780
140MB
Q31
32GB 3GB RAM
Other
KC780
-
Q31
eMMC 5.1
Single
KC780
8 MP, AF
Q31
-
Features
KC780
Schneider-Kreuznach optics, LED flash
Q31
LED flash, panorama, HDR
Video
KC780
480p@30fps
Q31
1080p@30fps
Dual
KC780
-
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
Other
KC780
No
Q31
-
Single
KC780
-
Q31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
KC780
-
Q31
1080p@30fps
Loudspeaker
KC780
Yes
Q31
Yes
3.5mm jack
KC780
No
Q31
Yes
WLAN
KC780
No
Q31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
KC780
2.1, A2DP
Q31
5.0, A2DP, LE
Positioning
KC780
No
Q31
GPS
Radio
KC780
FM radio
Q31
No
USB
KC780
2.0
Q31
microUSB 2.0
NFC
KC780
-
Q31
No
Sensors
KC780
Accelerometer
Q31
Accelerometer
Messaging
KC780
SMS, EMS, MMS, Email
Q31
-
Browser
KC780
WAP 2.0/xHTML
Q31
-
Games
KC780
Yes
Q31
-
Java
KC780
Yes, MIDP 2.0
Q31
-
Other
KC780
MP3/MP4/AAC/DivX6 player Organizer Document viewer (Word, Excel, PowerPoint, PDF) Voice memo Predictive text input
Q31
-
Type
KC780
Removable Li-Ion 900 mAh battery
Q31
Li-Ion 3000 mAh
Stand-by
KC780
Up to 450 h
Q31
-
Talk time
KC780
Up to 6 h
Q31
-
Colors
KC780
Gray
Q31
Silver
SAR
KC780
0.20 W/kg (head) 0.50 W/kg (body)
Q31
-
Price
KC780
About 140 EUR
Q31
About 150 EUR
Models
KC780
-
Q31
LM-Q310N
OS
KC780
-
Q31
Android 10
Chipset
KC780
-
Q31
Mediatek MT6762 Helio P22 (12 nm)
CPU
KC780
-
Q31
Octa-core 2.0 GHz Cortex-A53
GPU
KC780
-
Q31
PowerVR GE8320