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Phone Samsung SGH-A657 Motorola i670 Samsung Captivate Glide Nokia Lumia 521 / 520
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? 4" diag.
5 : 3
4" diag.
5 : 3
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
130 x 130 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
AMOLED
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ?
Battery 1,420 mAh ? 1,650 mAh 1,430 mAh
Processor ? ? 1 GHz Nvidia Tegra 2 AP20H 1 GHz Qualcomm Snapdragon S4 MSM8270
RAM ? ? 1 GB 512 MB
Storage ? raw hardware ? raw hardware 8 GB 8 GB
Main Camera - - 8 megapixel 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - 720p HD 720p HD
Front Camera - - 1 megapixel -
Weight 4.34 oz
(123g)
4.06 oz
(115g)
5.2 oz
(147g)
4.39 oz
(124g)
Dimensions 4.53" x 2.05" x 0.77"
(115 x 52 x 19.6 mm)
3.46" x 2" x 1.02"
(88 x 51 x 25.9 mm)
4.88" x 2.55" x 0.51"
(124 x 65 x 13 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
Form Factor Slab Clamshell Slide Slab
Platform / OS (proprietary) (proprietary) Android Windows
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

iDEN: 800

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology HSDPA 3.6 WiDEN HSPA+ 21 HSPA+ 21
Features 
Flashlight Yes - - -
GPS / Location Yes Yes n/a n/a
Ruggedized Yes - - -
Accessibility
Adjustable Text Size - Yes n/a n/a
Hearing Aid Compatible - Yes Yes Yes
Multiple Languages Yes - n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Ringer Profiles - Yes - -
Connectivity
Bluetooth Yes
Classic Audio
- Yes
Classic Audio
Yes
Mobile Hotspot - - n/a n/a
USB Yes - Yes
Micro-USB
Yes
Wi-Fi - - Yes Yes
Contacts
Picture ID Yes - n/a n/a
Ringer ID Yes Yes n/a n/a
Voice Dialing - Yes n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a
Custom Ringtones Yes Yes n/a n/a
Real-Music Ringers Yes - n/a n/a
Data & Network
Data Tethering Yes Yes n/a n/a
WAP / Web Browser Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes -
Touch Screen - - Yes Yes
Memory
Memory Card Slot Yes - Yes Yes
Messaging
Email Client Yes - n/a n/a
Instant Messaging Yes - n/a n/a
MMS Yes Yes n/a n/a
Text Messaging Templates Yes Yes n/a n/a
Music
Headphone Jack (3.5mm) - - Yes Yes
Music Player Yes - n/a n/a
Photo & Video
DLNA - - Yes -
TV Output - - Yes -
Productivity
Alarm Yes - n/a n/a
Calculator Yes - n/a n/a
Calendar Yes Yes n/a n/a
To-Do List Yes - n/a n/a
Voice Memo Yes Yes n/a n/a
Software
Games Yes - n/a n/a
Java (J2ME) Yes Yes n/a n/a
Voice
Headset Jack (2.5 mm) - Yes n/a n/a
Push-To-Talk Yes Yes - -
Speaker Phone Yes Yes Yes Yes
  Samsung SGH-A657 Motorola i670 Samsung Captivate Glide Nokia Lumia 521 / 520
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-A657 Motorola i670 Samsung Captivate Glide Nokia Lumia 521 / 520

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