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Phone Apple iPhone 4 (CDMA) Nokia Lumia 635 (CDMA) Cricket Debut S2 / AT&T Calypso 4 HTC Desire 530 Nubia RedMagic 5S
Current U.S. Carriers (none) (none) AT&T (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
4.5" diag.
16 : 9
6.1" diag.
19.5 : 9
5" diag.
16 : 9
6.7" diag.
19.5 : 9
Display Resolution & Type 640 x 960 pixels
(~330 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
720 x 1560 pixels
(~282 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
1080 x 2340 pixels
(~388 ppi)
AMOLED
Display Refresh 60 Hz ? 60 Hz 60 Hz 144 Hz
Battery ? 1,830 mAh 3,000 mAh 2,200 mAh 4,500 mAh
Processor ? 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) 2 GHz MediaTek Helio A22 (MT6761WB) 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) Qualcomm Snapdragon 865
RAM ? 512 MB 3 GB 1.5 GB 8 GB *
Storage 8 GB * 8 GB 64 GB 16 GB 128 GB *
Main Camera 5 megapixel 5 megapixel 8 megapixel 8 megapixel 64 megapixel
Wide Camera - - - - 8 megapixel
Tele Camera - - - - -
Video Capture 720p HD 720p HD ? 720p HD 4K UHD
Front Camera Yes - 5 megapixel 5 megapixel 8 megapixel
Weight 4.8 oz
(136g)
4.73 oz
(134g)
5.64 oz
(160g)
4.94 oz
(140g)
7.76 oz
(220g)
Dimensions 4.5" x 2.31" x 0.37"
(114 x 59 x 9.4 mm)
5.1" x 2.63" x 0.36"
(130 x 67 x 9.1 mm)
6.11" x 2.87" x 0.34"
(155 x 73 x 8.6 mm)
5.78" x 2.79" x 0.33"
(147 x 71 x 8.3 mm)
6.64" x 3.07" x 0.38"
(169 x 78 x 9.8 mm)
Platform / OS iOS Windows Android Android Android
Network Bands

CDMA: 850, 1900

4G LTE: 25, 26, 41

WCDMA: 1, 2, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66

WCDMA: 1, 2, 4, 5, 8

4G LTE: 2, 4, 5, 7, 12, 13

WCDMA: 1, 2, 4, 5

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

5G: 41, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 26, 34, 38, 40, 41

WCDMA: 1, 2, 4, 5, 8, 19

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology EVDO rA LTE (Cat 3) LTE (Cat 4) LTE (Cat 4) NR (5G)
Features 
Fingerprint Reader - - - - Yes
Flashlight - - Yes Yes Yes
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes -
TTY/TDD (Digital) - Yes - Yes -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
USB Yes Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Yes
USB Type C
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Data & Network
Dual-SIM - - - - Yes
Input
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes Yes Yes Yes Yes
Memory
Memory Card Slot - Yes Yes Yes -
Music
FM Radio - Yes - Yes -
Headphone Jack (3.5mm) Yes Yes Yes Yes Yes
Stereo Speakers - - - - Yes
Photo & Video
DLNA - Yes - - -
TV Output Yes - - - Yes
Power
Fast Charging - - Yes - Yes
Voice
HD Voice - - Yes - -
Speaker Phone Yes Yes Yes Yes Yes
  Apple iPhone 4 (CDMA) Nokia Lumia 635 (CDMA) Cricket Debut S2 / AT&T Calypso 4 HTC Desire 530 Nubia RedMagic 5S
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Apple iPhone 4 (CDMA) Nokia Lumia 635 (CDMA) Cricket Debut S2 / AT&T Calypso 4 HTC Desire 530 Nubia RedMagic 5S

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