#1

What makes Alcatel Pixi 4007D better Choice

Screen Size 2.8 inches (Screen to Body Ratio: 37.09%) 3.5 inches (Screen to Body Ratio: 47.14%) 2.8 inches (Screen to Body Ratio: 35.66%)
Alcatel OneTouch Pixi 4007D Dual Sim has 25.00% bigger screen size.
Internal Storage 64 MB 512 MB
Alcatel OneTouch Pixi 4007D Dual Sim has 700.00% more internal memory.
RAM 64 MB 256 MB
Alcatel OneTouch Pixi 4007D Dual Sim has 300.00% more RAM.
3G No Yes, HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps No
Alcatel OneTouch Pixi 4007D Dual Sim supports 3G, whereas Nokia Asha 500,Micromax X510 doesn't.
Sim Count Dual Sim Dual Sim Single Sim
Nokia Asha 500,Alcatel OneTouch Pixi 4007D Dual Sim is a Dual Sim phone, whereas Micromax X510 is a Single Sim phone.
#2

What makes Nokia Asha 500 Dual SIM better Choice

Standby Time 528 hrs 500 hrs 384 hrs
Nokia Asha 500 has 5.60% more standby time.
Sim Count Dual Sim Dual Sim Single Sim
Nokia Asha 500,Alcatel OneTouch Pixi 4007D Dual Sim is a Dual Sim phone, whereas Micromax X510 is a Single Sim phone.
#3

What makes Micromax X510 better Choice

Display Clarity 143 ppi 165 ppi 167 ppi
Micromax X510 has 16.78% higher screen resolution than Nokia Asha 500,Alcatel OneTouch Pixi 4007D Dual Sim.
Micromax X510
Micromax X510

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Feature Comparison of Nokia Asha 500 Vs Alcatel OneTouch Pixi 4007D Dual Sim Vs Micromax X510

General
Sim Support Dual Sim, Micro-SIM, GSM + GSM Dual Sim, GSM + GSM Single Sim, Mini-SIM, GSM
Phone Dimensions 100.3 x 58.1 x 12.8 mm 115 x 62.3 x 12.2 mm 110.2 x 55 x 14.8 mm
Phone Weight 101.3 grams 118 grams 103 grams
Keypad Touch Touch Touch
SAR Value 0.64 W/kg (head) 0.60 W/kg (body) 1.16 W/kg (head) 1.11 W/kg (body)
Display
Screen Size 2.8 inches (Screen to Body Ratio: 37.09%) 3.5 inches (Screen to Body Ratio: 47.14%) 2.8 inches (Screen to Body Ratio: 35.66%)
Screen Resolution 240 x 320 Pixels, 143 ppi 320 x 480 Pixels, 165 ppi 240 x 400 Pixels, 167 ppi
Screen Type TFT, With 262 K Colors TFT, With 262 K Colors TFT, With 256 K Colors
Touch Type Capacitive With Multitouch Up to 2 fingers Capacitive With Multitouch up to 5 fingers Resistive With Multitouch
Photo & Video
Camera Yes, 2 Megapixel Yes, 2 Megapixel Yes, 2 Megapixel
Flash No No No
Front Camera No No, 0.3 Megapixel No
Camera Features Fixed focus, Digital zoom-4x, Landscape orientation, Auto and manual white balance, Still image editor, Full screen viewfinder
Video Recording Yes, 320p at 13 fps Yes, 480 at 30 fps Yes
Front Flash No
Technical
Operating System Nokia Asha
RAM 64 MB 256 MB
Processor 1 GHz , Single Core
User Interface Modified Android
Battery
Battery 1200 mAh, Li-ion 1300 mAh, Li-ion 1500 mAh, Li-ion
Battery Standby Up to 528 hrs Up to 500 hrs (2G), Up to 300 hrs (3G) Up to 384 hrs
Battery Talk Time Up to 14 hrs Up to 13 hrs (2G), Up to 7 hrs (3G) Up to 8 hrs
Connectivity
GPRS Yes Yes Yes
EDGE Yes, Up to 236.8 kbps Yes Yes
3G No Yes, HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps No
4G No No No
Wi-Fi Yes Yes
WiMax No No
USB Connectivity Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB v2.0
GPS No No No
Bluetooth Yes, v3.0 Yes, v4.0 Yes, v2.0 with A2DP
Support NFC No No
Multimedia
E-mail Yes, with Push E-mail Yes, with Push E-mail Yes, with Push E-mail
Document Reader Yes Yes Yes
FM Radio Yes Yes Yes
Alert Types Vibration, MP3 Vibration,MP3,WAV ringtones Vibration, Polyphonic, MP3
PDF Reader No No
Memory
Phonebook Memory 4000 contacts Practically unlimited contacts 2000 contacts
Internal Storage 64 MB 512 MB
Expandable Memory microSD, upto 32 GB microSD, up to 32 GB Up to 16 GB
Other Features
Quick Charging No
Speaker Quality Integrated Hands-free Speakers
Additional Features Java: MIDP 2.1, Preinstalled Browser: Nokia Xpress Browser, Screen Double Tap, Document Viewer, VOIP Support, Outlook, Conference Call, Loudspeaker, Call Divert, Firmware update, Device lock, PIN code, Device lock passcode, Digital clock, Recorder, Calculator, Calendar, Fixed dialling number, Notes, Alarm clock, Reminders, Phonebook, Alarm clock with ringtones, Social networks in Phonebook Zenga, Snaptu, Social Networking Consortium
Sensors Accelerometer, Proximity