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Phone HTC Droid Eris HTC 10 Samsung Galaxy S21 NEC 535M
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Not yet released
Specifications 
Display Size 3.2" diag.
5 : 3
5.2" diag.
16 : 9
6.2" diag.
20 : 9
?
Display Resolution & Type 320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~565 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~424 ppi)
AMOLED
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh 60 Hz 60 Hz 120 Hz ?
Battery 1,300 mAh 3,000 mAh 4,000 mAh 720 mAh
Processor 528 MHz MSM7600 2.2 GHz Qualcomm Snapdragon 820 (MSM8996) 2.8 GHz Qualcomm Snapdragon 888 ?
RAM ? 4 GB 8 GB ?
Storage ? raw hardware 32 GB * 128 GB * ? raw hardware
Main Camera 5 megapixel 12 megapixel 12 megapixel 1 megapixel
Wide Camera - - 12 megapixel -
Tele Camera - - 64 megapixel -
Video Capture CIF (352 x 288) 4K UHD 8K QCIF (176 x 144)
Front Camera - 5 megapixel 10 megapixel -
Weight 4.43 oz
(126g)
5.68 oz
(161g)
6.03 oz
(171g)
4.16 oz
(118g)
Dimensions 4.45" x 2.19" x 0.52"
(113 x 55 x 13.2 mm)
5.74" x 2.83" x 0.35"
(146 x 72 x 9 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
3.98" x 1.93" x 1.02"
(101 x 49 x 25.9 mm)
Form Factor Slab Slab Slab Clamshell
Platform / OS Android Android Android (proprietary)
Network Bands

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 17, 20, 28, 29, 30

WCDMA: 1, 2, 4, 5

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

5G: 2, 5, 12, 25, 30, 41, 66, 71, 77-C, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 850, 1800, 1900

Data Technology EVDO rA LTE (Cat 9) NR (5G) GPRS
Features 
Barometer - - Yes -
Fingerprint Reader - Yes Yes
in-display (ultrasonic)
-
Flashlight - Yes Yes Yes
GPS / Location n/a n/a n/a -
Water-Resistant - Yes
IPX3 (falling spray)
Yes
IPX8 (SCUBA)
-
Accessibility
Adjustable Text Size n/a n/a n/a -
Hearing Aid Compatible Yes Yes Yes -
Multiple Languages n/a n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display - - - Yes
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
-
Infrared (IR) - - - Yes
MirrorLink - Yes - -
Mobile Hotspot n/a n/a n/a -
NFC - Yes Yes -
USB Yes
Mini-USB
Yes
USB Type C
Yes
USB Type C
Yes
Wi-Fi Yes
802.11 b,g
Yes
5 (802.11 a,ac,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
-
Contacts
Picture ID n/a n/a n/a Yes
Ringer ID n/a n/a n/a Yes
Voice Dialing n/a n/a n/a Yes
Customization
Custom Graphics n/a n/a n/a Yes
Custom Ringtones n/a n/a n/a Yes
Real-Music Ringers n/a n/a n/a -
Data & Network
Data Tethering n/a n/a n/a Yes
WAP / Web Browser n/a n/a n/a Yes
Input
Predictive Text Entry n/a n/a n/a Yes
Side Keys Yes Yes Yes Yes
Touch Screen Yes Yes Yes -
Memory
Memory Card Slot Yes Yes - -
Messaging
Email Client n/a n/a n/a Yes
Instant Messaging n/a n/a n/a -
MMS n/a n/a n/a Yes
Text Messaging Templates n/a n/a n/a -
Music
Headphone Jack (3.5mm) Yes Yes - -
Music Player n/a n/a n/a -
Stereo Speakers - - Yes -
Photo & Video
DLNA - Yes - -
Miracast - Yes - -
TV Output - Yes Yes -
Power
Fast Charging - Yes Yes -
Wireless Charging - - Yes -
Productivity
Alarm n/a n/a n/a Yes
Calculator n/a n/a n/a Yes
Calendar n/a n/a n/a Yes
To-Do List n/a n/a n/a Yes
Voice Memo n/a n/a n/a Yes
Software
Games n/a n/a n/a Yes
Java (J2ME) n/a n/a n/a Yes
Voice
HD Voice - Yes Yes -
Speaker Phone Yes Yes Yes -
  HTC Droid Eris HTC 10 Samsung Galaxy S21 NEC 535M
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Phone HTC Droid Eris HTC 10 Samsung Galaxy S21 NEC 535M

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