Micromax X600 vs Micromax Bolt D303

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PHONES
Phone Names Micromax X600 Micromax Bolt D303
Network
2G bandsGSM 900 / 1800 - SIM 1GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands-HSDPA 900 / 2100
EDGEClass 10-
GPRSClass 10-
Speed-HSPA 21.1/5.76 Mbps
TechnologyGSMGSM / HSPA
Launch
Announced2010. Released 20102015, July. Released 2015, July
StatusDiscontinuedDiscontinued
Body
Dimensions113 x 56 x 12.7 mm (4.45 x 2.20 x 0.5 in)-
SIMDual SIM (Mini-SIM)Dual SIM
Weight110 g (3.88 oz)-
Display
Resolution240 x 320 pixels, 4:3 ratio (~125 ppi density)480 x 800 pixels, 5:3 ratio (~233 ppi density)
Size3.2 inches, 31.7 cm2 (~50.1% screen-to-body ratio)4.0 inches, 45.5 cm2
TypeTFT resistive touchscreen, 256K colorsTFT, 256K colors
Platform
CPU-Dual-core 1.3 GHz Cortex-A7
Chipset-Mediatek MT6572M (28 nm)
GPU-Mali-400
OS-Android 4.4.2 (KitKat)
Memory
Call recordsYes-
Card slotmicroSDHC (dedicated slot)microSDHC
Internal-4GB 512MB RAM
Phonebook1000 entries, Photocall-
Main Camera
Features-LED flash
Single2 MP3.15 MP
VideoYes480p@30fps
Selfie camera
Single-VGA
Sound
3.5mm jack -Yes
35mm jackNoYes
Loudspeaker YesYes
Comms
Bluetooth2.0, A2DP4.0, A2DP
NFC-No
PositioningNoGPS
RadioStereo FM radioFM radio
USB2.0microUSB 2.0
WLANNoWi-Fi 802.11 b/g/n, hotspot
Features
BrowserWAP 2.0/xHTML (Opera Mini)-
GamesDownloadable-
JavaYes, MIDP 2.0-
MessagingSMS, MMS, Email-
SensorsAccelerometerAccelerometer
Battery
Stand-byUp to 192 hUp to 245 h (3G)
Talk timeUp to 5 hUp to 4 h 40 min (3G)
TypeRemovable Li-Ion 1100 mAh batteryLi-Ion 1300 mAh, removable
Misc
ColorsBlackBlack
PriceAbout 50 EUR-
SAR-0.39 W/kg (head)     0.64 W/kg (body)