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Phone BlackBerry 8820 Samsung M400 Samsung SGH-A657 ZTE Savvy
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 2.4" diag.
4 : 3
? 4" diag.
5 : 3
Display Resolution & Type 320 x 240 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz
Battery 1,400 mAh 1,000 mAh 1,420 mAh 1,650 mAh
Processor ? 400 MHz Qualcomm QSC6155 ? 1 GHz Qualcomm MSM8625
RAM ? 128 MB ? 768 MB
Storage ? raw hardware 256 MB ? raw hardware 4 GB
Main Camera - 1 megapixel - 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - - WVGA / 480p
Front Camera - - - -
Weight 4.73 oz
(134g)
3.7 oz
(105g)
4.34 oz
(123g)
4.43 oz
(126g)
Dimensions 4.49" x 2.6" x 0.55"
(114 x 66 x 14 mm)
3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
4.53" x 2.05" x 0.77"
(115 x 52 x 19.6 mm)
4.96" x 2.55" x 0.42"
(126 x 65 x 10.7 mm)
Form Factor Slab Clamshell Slab Slab
Platform / OS BlackBerry OS (proprietary) (proprietary) Android
Network Bands

GSM: 850, 900, 1800, 1900

CDMA: 800, 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology EDGE 1xRTT HSDPA 3.6 EVDO rA
Features 
Flashlight - - Yes Yes
GPS / Location n/a Yes Yes n/a
Ruggedized - - Yes -
Accessibility
Adjustable Text Size n/a Yes - n/a
Hearing Aid Compatible - Yes
M4, T4 (very tele-coil compatible)
- Yes
M4, T4 (very tele-coil compatible)
Multiple Languages n/a Yes Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display - Yes - -
Ringer Profiles Yes - - -
Connectivity
Bluetooth Yes Yes Yes Yes
USB Yes
Mini-USB
Yes
Micro-USB
Yes Yes
Micro-USB
Wi-Fi Yes - - Yes
4 (802.11 b,g,n)
Contacts
Picture ID n/a Yes Yes n/a
Ringer ID n/a Yes Yes n/a
Voice Dialing n/a Yes - n/a
Customization
Custom Graphics n/a Yes Yes n/a
Custom Ringtones n/a Yes Yes n/a
Real-Music Ringers n/a Yes Yes n/a
Data & Network
Data Tethering n/a - Yes n/a
WAP / Web Browser n/a Yes Yes n/a
Input
Predictive Text Entry n/a Yes Yes n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - -
Touch Screen - - - Yes
Capacitive
Memory
Memory Card Slot Yes - Yes Yes
Messaging
Email Client n/a - Yes n/a
Instant Messaging n/a - Yes n/a
MMS n/a Yes Yes n/a
Text Messaging Templates n/a Yes Yes n/a
Music
Headphone Jack (3.5mm) - Yes - Yes
Music Player n/a - Yes n/a
Photo & Video
DLNA - - - Yes
Productivity
Alarm n/a Yes Yes n/a
Calculator n/a Yes Yes n/a
Calendar n/a Yes Yes n/a
To-Do List n/a - Yes n/a
Voice Memo n/a Yes Yes n/a
Software
Games n/a Yes Yes n/a
Java (J2ME) n/a - Yes n/a
Voice
Push-To-Talk Yes * - Yes -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  BlackBerry 8820 Samsung M400 Samsung SGH-A657 ZTE Savvy
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone BlackBerry 8820 Samsung M400 Samsung SGH-A657 ZTE Savvy

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