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Phone Samsung SCH-i830 / IP-830w AT&T Maestro 3 Nokia Lumia 521 / 520 TCL 30 5G Apple iPhone 3G
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Not yet released Released
Specifications 
Display Size ? 6.5" diag.
20 : 9
4" diag.
5 : 3
6.7" diag.
20 : 9
3.5" diag.
5 : 3
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~393 ppi)
AMOLED
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? 60 Hz 60 Hz
Battery ? 3,900 mAh 1,430 mAh 5,010 mAh ?
Processor 520 MHz Intel Bulverde 2 GHz MediaTek Helio A22 (MT6761) 1 GHz Qualcomm Snapdragon S4 MSM8270 2.2 GHz MediaTek Dimensity 700 (MT6833) ?
RAM ? 3 GB 512 MB 4 GB ?
Storage ? raw hardware 32 GB 8 GB 128 GB 16 GB *
Main Camera - 13 megapixel 5 megapixel 50 megapixel 2 megapixel
Wide Camera - 5 megapixel - - -
Tele Camera - - - - -
Video Capture - 1080p HD 720p HD 1080p HD -
Front Camera - 5 megapixel - 13 megapixel -
Weight 6.44 oz
(183g)
6.24 oz
(177g)
4.39 oz
(124g)
6.49 oz
(184g)
4.7 oz
(133g)
Dimensions 4.49" x 2.28" x 0.97"
(114 x 58 x 24.6 mm)
6.58" x 3.03" x 0.33"
(167 x 77 x 8.4 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
6.48" x 2.96" x 0.3"
(165 x 75 x 7.6 mm)
4.52" x 2.44" x 0.49"
(115 x 62 x 12.4 mm)
Platform / OS Windows Mobile Professional Android Windows Android iOS
Network Bands

CDMA: 850, 1900

GSM: 900, 1800

4G LTE: 2, 4, 5, 12, 14, 30

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

5G: 2, 5, 7, 25, 28, 38, 41, 66, 71, 77-C, 78

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 28, 29, 38, 40, 41, 42, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 LTE (Cat 4) HSPA+ 21 NR (5G) HSDPA 3.6
Features 
Barometer - Yes - Yes -
Fingerprint Reader - Yes
stand-alone
- Yes
stand-alone
-
Flashlight - Yes - Yes -
Accessibility
Hearing Aid Compatible - Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
-
TTY/TDD (Digital) Yes - Yes Yes Yes
Alerts
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) Yes - - - -
NFC - - - Yes -
USB Yes Yes
USB Type C
Yes Yes
USB Type C
Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes Yes
5 (802.11 a,ac,b,g,n)
Yes
802.11 b,g
Input
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen Yes Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes Yes -
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - Yes Yes Yes Yes
Stereo Speakers Yes - - - -
Photo & Video
TV Output - - - - Yes
Power
Fast Charging - - - Yes -
Voice
HD Voice - Yes - Yes -
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SCH-i830 / IP-830w AT&T Maestro 3 Nokia Lumia 521 / 520 TCL 30 5G Apple iPhone 3G
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SCH-i830 / IP-830w AT&T Maestro 3 Nokia Lumia 521 / 520 TCL 30 5G Apple iPhone 3G

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