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Phone Samsung Wafer R510 Samsung DoubleTime Apple iPhone 11 Pro Google Pixel 3a XL
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 1.9" diag.
4 : 3
3.2" diag.
5 : 3
5.8" diag.
19.5 : 9
6" diag.
18 : 9
Display Resolution & Type 220 x 176 pixels
(~148 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
1125 x 2436 pixels
(~463 ppi)
AMOLED
1080 x 2160 pixels
(~402 ppi)
AMOLED
Display Refresh ? 60 Hz 60 Hz 60 Hz
Battery 800 mAh 1,200 mAh 3,190 mAh 3,700 mAh
Processor ? 600 MHz Qualcomm Apple A13 Bionic 2 GHz Qualcomm Snapdragon 670
RAM ? ? 4 GB 4 GB
Storage ? raw hardware ? raw hardware 64 GB * 64 GB
Main Camera 1 megapixel 3 megapixel 12 megapixel 12 megapixel
Wide Camera - - 12 megapixel -
Tele Camera - - 12 megapixel -
Video Capture ? QVGA (320 x 240) 4K UHD 4K UHD
Front Camera - - 12 megapixel 8 megapixel
Weight 2.47 oz
(70g)
5.22 oz
(148g)
6.63 oz
(188g)
5.89 oz
(167g)
Dimensions 4.45" x 1.97" x 0.33"
(113 x 50 x 8.4 mm)
4.45" x 2.44" x 0.59"
(113 x 62 x 15 mm)
5.67" x 2.81" x 0.32"
(144 x 71 x 8.1 mm)
6.3" x 3" x 0.3"
(160 x 76 x 7.6 mm)
Form Factor Slab Clamshell Slab Slab
Platform / OS (proprietary) Android iOS Android
Network Bands

CDMA: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 29, 30, 34, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 HSPA 7.2 LTE (Cat 18) LTE (Cat 11)
Features 
Barometer - - Yes Yes
Fingerprint Reader - - - Yes
stand-alone
Flashlight - - Yes Yes
GPS / Location Yes n/a n/a n/a
Water-Resistant - - Yes
IPX8 (SCUBA)
-
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Connectivity
Bluetooth Yes Yes Yes Yes
Mobile Hotspot - n/a n/a n/a
NFC - - Yes Yes
USB - Yes
Micro-USB
Yes Yes
USB Type C
UWB - - Yes -
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes n/a n/a n/a
Ringer ID - n/a n/a n/a
Voice Dialing Yes 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 - n/a n/a n/a
Data & Network
Data Tethering - n/a n/a n/a
Dual-SIM - - Yes -
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 Yes
Text Keyboard, Hardware - Yes - -
Touch Screen - Yes Yes Yes
Memory
Memory Card Slot 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
Music
Headphone Jack (3.5mm) - Yes - Yes
Music Player Yes n/a n/a n/a
Stereo Speakers Yes - Yes Yes
Photo & Video
TV Output - - Yes -
Power
Fast Charging - - Yes Yes
Wireless Charging - - 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
Voice Memo Yes n/a n/a n/a
Software
BREW Yes n/a n/a n/a
Games Yes n/a n/a n/a
Voice
Call Screening - - - Yes
HD Voice - - Yes Yes
Speaker Phone Yes Yes Yes Yes
  Samsung Wafer R510 Samsung DoubleTime Apple iPhone 11 Pro Google Pixel 3a XL
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Wafer R510 Samsung DoubleTime Apple iPhone 11 Pro Google Pixel 3a XL

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