Screen size
Optimus Chat C5502.8"
Q31Winner: 5.7"+51%
Quick verdict
Q31 leads the measured specs 11-2.
Measured wins
Optimus Chat C550
2
spec wins
Ties
4
equal specs
Q31
11
spec wins
Overall winner
Screen size
Technology
Optimus Chat C550
GSM / HSPA
Q31
GSM / HSPA / LTE
2G bands
Optimus Chat C550
GSM 850 / 900 / 1800 / 1900
Q31
GSM 850 / 900 / 1800 / 1900
3G bands
Optimus Chat C550
HSDPA 900 / 1700 / 2100
Q31
HSDPA 850 / 900 / 1900 / 2100
Speed
Optimus Chat C550
HSPA 7.2/5.76 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
equal specsSD card
equal specsStereo speakers
Q31
HSPA, LTE
4G bands
Optimus Chat C550
-
Q31
LTE
Announced
Optimus Chat C550
2011, February. Released 2011, March
Q31
2020, September 17. Released 2020, September 25
Status
Optimus Chat C550
Discontinued
Q31
Discontinued
Dimensions
Optimus Chat C550
109 x 59 x 16 mm (4.29 x 2.32 x 0.63 in)
Q31
147.9 x 71 x 8.7 mm (5.82 x 2.80 x 0.34 in)
Weight
Optimus Chat C550
122 g (4.30 oz)
Q31
145 g (5.11 oz)
Keyboard
Optimus Chat C550
QWERTY
Q31
-
SIM
Optimus Chat C550
Mini-SIM
Q31
Nano-SIM
Other
Optimus Chat C550
-
Q31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
Optimus Chat C550
TFT, 256K colors
Q31
IPS LCD
Size
Optimus Chat C550
2.8 inches, 23.3 cm2 (~36.3% screen-to-body ratio)
Q31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
Optimus Chat C550
320 x 480 pixels, 3:2 ratio (~206 ppi density)
Q31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
OS
Optimus Chat C550
Android 2.2 (Froyo)
Q31
Android 10
Chipset
Optimus Chat C550
-
Q31
Mediatek MT6762 Helio P22 (12 nm)
CPU
Optimus Chat C550
-
Q31
Octa-core 2.0 GHz Cortex-A53
GPU
Optimus Chat C550
-
Q31
PowerVR GE8320
Card slot
Optimus Chat C550
microSDHC (dedicated slot)
Q31
microSDXC
Internal
Optimus Chat C550
140MB
Q31
32GB 3GB RAM
Other
Optimus Chat C550
-
Q31
eMMC 5.1
Single
Optimus Chat C550
3.15 MP, AF
Q31
-
Video
Optimus Chat C550
Yes
Q31
1080p@30fps
Dual
Optimus Chat C550
-
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
Features
Optimus Chat C550
-
Q31
LED flash, panorama, HDR
Other
Optimus Chat C550
No
Q31
-
Single
Optimus Chat C550
-
Q31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
Optimus Chat C550
-
Q31
1080p@30fps
Loudspeaker
Optimus Chat C550
Yes
Q31
Yes
3.5mm jack
Optimus Chat C550
Yes
Q31
Yes
WLAN
Optimus Chat C550
Wi-Fi 802.11 b/g, Wi-Fi Direct, hotspot
Q31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
Optimus Chat C550
2.1, A2DP, EDR
Q31
5.0, A2DP, LE
Positioning
Optimus Chat C550
GPS, A-GPS
Q31
GPS
Radio
Optimus Chat C550
FM radio
Q31
No
USB
Optimus Chat C550
microUSB 2.0
Q31
microUSB 2.0
NFC
Optimus Chat C550
-
Q31
No
Sensors
Optimus Chat C550
Accelerometer
Q31
Accelerometer
Browser
Optimus Chat C550
HTML
Q31
-
Other
Optimus Chat C550
MP4/H.264/WMV player MP3/WAV/WMA/eAAC+ player Document viewer Organizer Voice memo Predictive text input
Q31
-
Type
Optimus Chat C550
Removable Li-Ion 1500 mAh battery
Q31
Li-Ion 3000 mAh
Stand-by
Optimus Chat C550
Up to 440 h
Q31
-
Talk time
Optimus Chat C550
Up to 5 h
Q31
-
Colors
Optimus Chat C550
Black, silver, blue, red, pink
Q31
Silver
SAR
Optimus Chat C550
0.49 W/kg (head) 0.39 W/kg (body)
Q31
-
SAR EU
Optimus Chat C550
0.71 W/kg (head) 1.24 W/kg (body)
Q31
-
Price
Optimus Chat C550
About 40 EUR
Q31
About 150 EUR
Models
Optimus Chat C550
-
Q31
LM-Q310N