Screen size
GT540 Optimus3.0"
K22Winner: 6.2"+52%
Quick verdict
K22 leads the measured specs 13-2.
Measured wins
GT540 Optimus
2
spec wins
Ties
3
equal specs
K22
13
spec wins
Overall winner
Screen size
Technology
GT540 Optimus
GSM / HSPA
K22
GSM / HSPA / LTE
2G bands
GT540 Optimus
GSM 850 / 900 / 1800 / 1900
K22
GSM 850 / 900 / 1800 / 1900
3G bands
GT540 Optimus
HSDPA 900 / 2100 , HSDPA 850 / 2100
K22
HSDPA 850 / 900 / 1900 / 2100 - International, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - Brazil
Speed
GT540 Optimus
HSPA 7.2/0.384 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
5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
K22
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
4G bands
GT540 Optimus
-
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
Announced
GT540 Optimus
2010, January. Released 2010, June
K22
2020, September 12. Released 2020, September 12
Status
GT540 Optimus
Discontinued
K22
Discontinued
Dimensions
GT540 Optimus
109 x 54.5 x 12.7 mm (4.29 x 2.15 x 0.5 in)
K22
155.7 x 75.4 x 8.4 mm (6.13 x 2.97 x 0.33 in)
Weight
GT540 Optimus
115.5 g (4.06 oz)
K22
169.5 g (6.00 oz)
SIM
GT540 Optimus
Mini-SIM
K22
Nano-SIM + Nano-SIM
Build
GT540 Optimus
-
K22
Glass front, plastic frame, plastic back
Other
GT540 Optimus
-
K22
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
GT540 Optimus
TFT resistive touchscreen, 256K colors (65K effective)
K22
IPS LCD, 400 nits (typ)
Size
GT540 Optimus
3.0 inches, 26.8 cm2 (~45.1% screen-to-body ratio)
K22
6.2 inches, 95.9 cm2 (~81.7% screen-to-body ratio)
Resolution
GT540 Optimus
320 x 480 pixels, 3:2 ratio (~192 ppi density)
K22
720 x 1520 pixels, 19:9 ratio (~271 ppi density)
OS
GT540 Optimus
Android 1.6 (Donut), upgradable to 2.1 (Eclair)
K22
Android 10
CPU
GT540 Optimus
600 MHz
K22
Quad-core 1.3 GHz Cortex-A53
Chipset
GT540 Optimus
-
K22
Qualcomm QM215 Snapdragon 215 (28 nm)
GPU
GT540 Optimus
-
K22
Adreno 308
Card slot
GT540 Optimus
microSDHC (dedicated slot)
K22
microSDXC
Internal
GT540 Optimus
139MB 156MB RAM
K22
32GB 2GB RAM, 64GB 3GB RAM
Other
GT540 Optimus
-
K22
eMMC 5.1
Single
GT540 Optimus
3.15 MP, AF
K22
-
Video
GT540 Optimus
480p@17fps
K22
1080p@30fps
Dual
GT540 Optimus
-
K22
13 MP, 27mm (wide), 1/3.1", 1.12µm, PDAF 2 MP (macro)
Features
GT540 Optimus
-
K22
LED flash, HDR
Other
GT540 Optimus
No
K22
-
Single
GT540 Optimus
-
K22
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
GT540 Optimus
-
K22
1080p@30fps
Loudspeaker
GT540 Optimus
Yes
K22
Yes
3.5mm jack
GT540 Optimus
Yes
K22
Yes
WLAN
GT540 Optimus
Wi-Fi 802.11 b/g
K22
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
GT540 Optimus
2.1, A2DP
K22
5.0, A2DP, LE
Positioning
GT540 Optimus
GPS, A-GPS
K22
GPS, GLONASS
Radio
GT540 Optimus
Stereo FM radio, RDS
K22
FM radio (market/operator dependent)
USB
GT540 Optimus
microUSB
K22
microUSB 2.0, OTG
NFC
GT540 Optimus
-
K22
No
Sensors
GT540 Optimus
Accelerometer
K22
Accelerometer, proximity, compass
Browser
GT540 Optimus
HTML
K22
-
Other
GT540 Optimus
MP4/DivX/Xvid/H.264/WMV player MP3/WAV/WMA/eAAC+ player Organizer Document viewer Voice memo Predictive text input
K22
-
Type
GT540 Optimus
Removable Li-Ion 1500 mAh battery
K22
Li-Po 3000 mAh
Stand-by
GT540 Optimus
Up to 500 h (2G) / Up to 500 h (3G)
K22
-
Talk time
GT540 Optimus
Up to 5 h 30 min (2G) / Up to 7 h 20 min (3G)
K22
-
Colors
GT540 Optimus
Black, White, Pink
K22
Titan, Blue
Models
GT540 Optimus
T540
K22
LMK200Z, LMK200E, LMK200B, LM-K200
SAR
GT540 Optimus
0.93 W/kg (head) 0.63 W/kg (body)
K22
-
Price
GT540 Optimus
About 70 EUR
K22
About 140 EUR