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Karbonn A21

Samsung I9100 Galaxy S II

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Karbonn A21
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Karbonn A21

Samsung I9100 Galaxy S II

Network
Technology GSM / HSPA GSM / HSPA
2G bands GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 2100 HSDPA 850 / 900 / 1900 / 2100
Speed HSPA 7.2/0.384 Mbps HSPA 21.1/5.76 Mbps
Launch
Announced 2012 2011, February. Released 2011, April
Status Discontinued Discontinued
Body
Dimensions - 125.3 x 66.1 x 8.5 mm (4.93 x 2.60 x 0.33 in)
Weight - 116 g (4.09 oz)
Build Glass front (Gorilla Glass), plastic back, plastic frame
SIM Dual SIM (Mini-SIM) Mini-SIM
Display
Type TFT, 256K colors Super AMOLED Plus
Size 4.5 inches, 57.6 cm2 4.3 inches, 52.6 cm2 (~63.5% screen-to-body ratio)
Resolution 480 x 800 pixels, 5:3 ratio (~207 ppi density) 480 x 800 pixels, 5:3 ratio (~217 ppi density)
Protection Corning Gorilla Glass
Platform
OS Android 4.0 (Ice Cream Sandwich) Android 2.3.4 (Gingerbread), upgradable to 4.1 (Jelly Bean), TouchWiz UI 4
Chipset Exynos 4210 Dual
CPU Dual-core 1.2 GHz Dual-core 1.2 GHz Cortex-A9
GPU Mali-400MP4
Memory
Card slot microSDHC (dedicated slot) microSDHC (dedicated slot)
Internal 4GB 512MB RAM 16GB 1GB RAM, 32GB 1GB RAM
Main Camera
Modules 5 MP, AF 8 MP, f/2.6, 1/3.2", AF
Features LED flash LED flash
Video Yes 1080p@30fps
Selfie Camera
Modules 1.3 MP 2 MP
Video
ADVERTISEMENT
Sound
Loudspeaker Yes Yes
3.5mm jack Yes Yes
Comms
WLAN Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot
Bluetooth 2.1, A2DP 3.0, A2DP, aptX
Positioning GPS GPS, A-GPS
NFC No Optional
Infrared port No No
Radio No Stereo FM radio, RDS
USB microUSB 2.0 microUSB 2.0 (MHL TV-out), OTG
Features
Sensors Accelerometer, proximity Accelerometer, gyro, proximity, compass
Battery
Type Li-Ion 1800 mAh, removable Removable Li-Ion 1650 mAh battery
Stand-by Up to 200 h Up to 710 h (2G) / Up to 610 h (3G)
Talk time Up to 5 h Up to 18 h 20 min (2G) / Up to 8 h 40 min (3G)
Misc
Colors Pearl White Black, White, Pink
SAR 0.16 W/kg (head)     0.96 W/kg (body)    
SAR EU 0.44 W/kg (head)     0.34 W/kg (head)    
Models GT-I9100, GT-I9100G, GT-I9100T
Price About 130 EUR About 170 EUR
Tests
Display Contrast ratio: Infinite (nominal) / 2.832:1 (sunlight)
Loudspeaker Voice 70dB / Noise 66dB / Ring 75dB
Audio quality Noise -91.4dB / Crosstalk -89.7dB
Battery (old) Endurance rating 40h

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