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Phone Samsung SGH-A157 Palm Treo 650 (CDMA) HTC EVO 4G HTC G2
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
? 4.3" diag.
5 : 3
3.7" diag.
5 : 3
Display Resolution & Type 128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~217 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~252 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz
Battery 800 mAh ? 1,500 mAh 1,300 mAh
Processor ? 312 MHz Intel XScale PXA270 1 GHz Qualcomm Snapdragon S1 QSD8650 800 MHz Qualcomm S2 MSM7230
RAM ? ? ? ?
Storage 256 MB ? raw hardware ? raw hardware ? raw hardware
Main Camera - Yes 8 megapixel 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - QVGA (320 x 240) 720p HD 720p HD
Front Camera - - Yes -
Weight 2.99 oz
(85g)
6.3 oz
(179g)
6 oz
(170g)
6.5 oz
(184g)
Dimensions 3.83" x 1.84" x 0.65"
(97 x 47 x 16.5 mm)
4.4" x 2.3" x 0.9"
(112 x 58 x 22.9 mm)
4.8" x 2.6" x 0.5"
(122 x 66 x 12.7 mm)
4.68" x 2.37" x 0.55"
(119 x 60 x 14 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Palm OS Android Android
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

4G WiMAX: 41

CDMA: 850, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

Data Technology ? 1xRTT WiMAX HSPA 14.4
Features 
GPS / Location Yes n/a n/a n/a
Accessibility
Adjustable Text Size Yes n/a n/a n/a
Hearing Aid Compatible Yes
M4 (very compatible)
- Yes Yes
M3 (mostly compatible)
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) Yes - Yes -
Alerts
Ringer Profiles Yes - - -
Connectivity
Bluetooth - Yes Yes Yes
Infrared (IR) - Yes - -
Mobile Hotspot - n/a n/a n/a
USB Yes
Micro-USB
- Yes Yes
Wi-Fi - - Yes
802.11 b,g
Yes
4 (802.11 b,g,n)
Contacts
Picture ID Yes n/a n/a n/a
Ringer ID Yes n/a n/a n/a
Voice Dialing - n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a
Real-Music Ringers Yes n/a n/a n/a
Data & Network
Data Tethering - n/a n/a n/a
WAP / Web Browser Yes n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a
Side Keys - Yes Yes Yes
Text Keyboard, Hardware - Yes - Yes
Touch Screen - Yes Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot - Yes Yes Yes
Messaging
Email Client - n/a n/a n/a
Instant Messaging - n/a n/a n/a
MMS Yes n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) - - Yes Yes
Music Player - n/a n/a n/a
Photo & Video
TV Output - - Yes -
Productivity
Alarm Yes n/a n/a n/a
Calculator Yes n/a n/a n/a
Calendar Yes n/a n/a n/a
To-Do List Yes n/a n/a n/a
Voice Memo Yes n/a n/a n/a
Software
Games - n/a n/a n/a
Voice
Headset Jack (2.5 mm) - n/a n/a n/a
Speaker Phone Yes Yes Yes Yes
  Samsung SGH-A157 Palm Treo 650 (CDMA) HTC EVO 4G HTC G2
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Phone Samsung SGH-A157 Palm Treo 650 (CDMA) HTC EVO 4G HTC G2

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