Screen size
K22Winner: 6.2"+55%
Optimus Chat C5502.8"
Quick verdict
K22 leads the measured specs 12-2.
Measured wins
K22
12
spec wins
Overall winner
Ties
4
equal specs
Optimus Chat C550
2
spec wins
Screen size
Technology
K22
GSM / HSPA / LTE
Optimus Chat C550
GSM / HSPA
2G bands
K22
GSM 850 / 900 / 1800 / 1900
Optimus Chat C550
GSM 850 / 900 / 1800 / 1900
3G bands
K22
HSDPA 850 / 900 / 1900 / 2100 - International, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - Brazil
Optimus Chat C550
HSDPA 900 / 1700 / 2100
4G bands
K22
1, 3, 5, 7, 8, 20, 28, 38, 40 - International, 1, 3, 7, 8, 20, 28 - Europe, 1, 3, 5, 7, 8, 20, 28, 40 - Brazil
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
Optimus Chat C550
-
Speed
K22
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Optimus Chat C550
HSPA 7.2/5.76 Mbps
Announced
K22
2020, September 12. Released 2020, September 12
Optimus Chat C550
2011, February. Released 2011, March
Status
K22
Discontinued
Optimus Chat C550
Discontinued
Dimensions
K22
155.7 x 75.4 x 8.4 mm (6.13 x 2.97 x 0.33 in)
Optimus Chat C550
109 x 59 x 16 mm (4.29 x 2.32 x 0.63 in)
Weight
K22
169.5 g (6.00 oz)
Optimus Chat C550
122 g (4.30 oz)
Build
K22
Glass front, plastic frame, plastic back
Optimus Chat C550
-
SIM
K22
Nano-SIM + Nano-SIM
Optimus Chat C550
Mini-SIM
Other
K22
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Optimus Chat C550
-
Keyboard
K22
-
Optimus Chat C550
QWERTY
Type
K22
IPS LCD, 400 nits (typ)
Optimus Chat C550
TFT, 256K colors
Size
K22
6.2 inches, 95.9 cm2 (~81.7% screen-to-body ratio)
Optimus Chat C550
2.8 inches, 23.3 cm2 (~36.3% screen-to-body ratio)
Resolution
K22
720 x 1520 pixels, 19:9 ratio (~271 ppi density)
Optimus Chat C550
320 x 480 pixels, 3:2 ratio (~206 ppi density)
OS
K22
Android 10
Optimus Chat C550
Android 2.2 (Froyo)
Chipset
K22
Qualcomm QM215 Snapdragon 215 (28 nm)
Optimus Chat C550
-
CPU
K22
Quad-core 1.3 GHz Cortex-A53
Optimus Chat C550
-
GPU
K22
Adreno 308
Optimus Chat C550
-
Card slot
K22
microSDXC
Optimus Chat C550
microSDHC (dedicated slot)
Internal
K22
32GB 2GB RAM, 64GB 3GB RAM
Optimus Chat C550
140MB
Other
K22
eMMC 5.1
Optimus Chat C550
-
Dual
K22
13 MP, 27mm (wide), 1/3.1", 1.12µm, PDAF 2 MP (macro)
Optimus Chat C550
-
Features
K22
LED flash, HDR
Optimus Chat C550
-
Video
K22
1080p@30fps
Optimus Chat C550
Yes
Single
K22
-
Optimus Chat C550
3.15 MP, AF
Single
K22
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Optimus Chat C550
-
Video
K22
1080p@30fps
Optimus Chat C550
-
Other
K22
-
Optimus Chat C550
No
Loudspeaker
K22
Yes
Optimus Chat C550
Yes
3.5mm jack
K22
Yes
Optimus Chat C550
Yes
WLAN
K22
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Optimus Chat C550
Wi-Fi 802.11 b/g, Wi-Fi Direct, hotspot
Bluetooth
K22
5.0, A2DP, LE
Optimus Chat C550
2.1, A2DP, EDR
Positioning
K22
GPS, GLONASS
Optimus Chat C550
GPS, A-GPS
NFC
K22
No
Optimus Chat C550
-
Radio
K22
FM radio (market/operator dependent)
Optimus Chat C550
FM radio
USB
K22
microUSB 2.0, OTG
Optimus Chat C550
microUSB 2.0
Sensors
K22
Accelerometer, proximity, compass
Optimus Chat C550
Accelerometer
Browser
K22
-
Optimus Chat C550
HTML
Other
K22
-
Optimus Chat C550
MP4/H.264/WMV player MP3/WAV/WMA/eAAC+ player Document viewer Organizer Voice memo Predictive text input
Type
K22
Li-Po 3000 mAh
Optimus Chat C550
Removable Li-Ion 1500 mAh battery
Stand-by
K22
-
Optimus Chat C550
Up to 440 h
Talk time
K22
-
Optimus Chat C550
Up to 5 h
Colors
K22
Titan, Blue
Optimus Chat C550
Black, silver, blue, red, pink
Models
K22
LMK200Z, LMK200E, LMK200B, LM-K200
Optimus Chat C550
-
Price
K22
About 140 EUR
Optimus Chat C550
About 40 EUR
SAR
K22
-
Optimus Chat C550
0.49 W/kg (head) 0.39 W/kg (body)
SAR EU
K22
-
Optimus Chat C550
0.71 W/kg (head) 1.24 W/kg (body)