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Phone ZTE Z331 HTC EVO Design 4G / Hero S (CDMA) Samsung SPH-N240 Samsung Impression SGH-A877 Huawei Pinnacle 2
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
4" diag.
16 : 9
? 3.2" diag.
5 : 3
2.4" diag.
4 : 3
Display Resolution & Type 176 x 220 pixels
(~117 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~275 ppi)
LCD (TFT/TFD)
128 x 64 pixels 240 x 400 pixels
(~146 ppi)
AMOLED
320 x 240 pixels
(~167 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ? ?
Battery 950 mAh 1,520 mAh ? 1,000 mAh 900 mAh
Processor ? 1.2 GHz Qualcomm Snapdragon S2 MSM8655 ? ? ?
RAM ? 768 MB ? ? ?
Storage ? raw hardware 4 GB ? raw hardware ? raw hardware 24 MB
Main Camera 3 megapixel 5 megapixel - 3 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QCIF (176 x 144) 720p HD - QVGA (320 x 240) QCIF (176 x 144)
Front Camera - 1 megapixel - - -
Weight 4 oz
(113g)
5.22 oz
(148g)
3.2 oz
(91g)
5.2 oz
(147g)
3.63 oz
(103g)
Dimensions 3.84" x 2.02" x 0.69"
(98 x 51 x 17.5 mm)
4.78" x 2.44" x 0.46"
(122 x 62 x 11.8 mm)
4.1" x 1.5" x 0.7"
(104 x 38 x 17.8 mm)
4.48" x 2.28" x 0.64"
(114 x 58 x 16.3 mm)
4.51" x 2.39" x 0.47"
(115 x 61 x 11.9 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) Android (proprietary) (proprietary) (proprietary)
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G WiMAX: 41

WCDMA: 1, 8

CDMA: 800, 850, 1900

GSM: 850, 1900

*

CDMA: 850, 1900

AMPS: 850

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1700, 1900

*

Data Technology HSDPA 3.6 WiMAX - HSDPA 3.6 1xRTT
Features 
Flashlight - Yes - - -
GPS / Location Yes n/a Yes Yes Yes
Accessibility
Hearing Aid Compatible Yes Yes - Yes Yes
Multiple Languages Yes n/a Yes Yes Yes
TTY/TDD (Digital) Yes Yes - - Yes
Alerts
Extra Display Yes - - - -
Ringer Profiles Yes - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
-
Yes
Classic Audio
Yes
Mobile Hotspot - n/a - - -
USB Yes
Micro-USB
Yes
Micro-USB
- Yes Yes
Micro-USB
Wi-Fi - Yes
4 (802.11 b,g,n)
- - -
Contacts
Picture ID Yes n/a - Yes Yes
Ringer ID Yes n/a Yes Yes Yes
Voice Dialing - n/a Yes - -
Customization
Changeable Body Plates - - Yes - -
Custom Graphics Yes n/a - Yes Yes
Custom Ringtones Yes n/a - Yes Yes
Real-Music Ringers Yes n/a - Yes -
Data & Network
Data Tethering Yes n/a - Yes -
WAP / Web Browser Yes n/a - Yes Yes
Input
Predictive Text Entry Yes n/a Yes Yes -
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes Yes
Touch Screen - Yes - Yes -
Memory
Memory Card Slot Yes Yes - Yes Yes
Messaging
Email Client Yes n/a - Yes Yes
Instant Messaging Yes n/a - Yes Yes
MMS Yes n/a - Yes Yes
Text Messaging Templates Yes n/a - Yes -
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) - Yes - - Yes
Music Player Yes n/a - Yes Yes
Photo & Video
DLNA - Yes - - -
Productivity
Alarm Yes n/a Yes Yes Yes
Calculator Yes n/a Yes Yes Yes
Calendar Yes n/a Yes Yes Yes
To-Do List - n/a Yes Yes -
Voice Memo Yes n/a - Yes Yes
Software
BREW - n/a - - Yes
Games Yes n/a Yes Yes Yes
Java (J2ME) Yes n/a - Yes -
Voice
Headset Jack (2.5 mm) - n/a Yes - -
Speaker Phone Yes Yes - Yes Yes
  ZTE Z331 HTC EVO Design 4G / Hero S (CDMA) Samsung SPH-N240 Samsung Impression SGH-A877 Huawei Pinnacle 2
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone ZTE Z331 HTC EVO Design 4G / Hero S (CDMA) Samsung SPH-N240 Samsung Impression SGH-A877 Huawei Pinnacle 2

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