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Phone ZTE Agent Palm Treo 650 (CDMA) Samsung Sidekick 4G ZTE Engage LT / Engage MT Boost Celero5G+ (2024)
Current U.S. Carriers (none) (none) (none) (none) Boost
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
? 3.5" diag.
5 : 3
4" diag.
5 : 3
7" diag.
20.5 : 9
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~267 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
1080 x 2460 pixels
(~384 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz 120 Hz
Battery 900 mAh ? ? 1,900 mAh 5,000 mAh
Processor ? 312 MHz Intel XScale PXA270 1 GHz Samsung Hummingbird Cortex A8 ? 2.5 GHz MediaTek Dimensity 1050 (MT6879)
RAM ? ? ? 1 GB 8 GB
Storage ? raw hardware ? raw hardware ? raw hardware 4 GB 256 GB
Main Camera 1 megapixel Yes 3 megapixel 3 megapixel 108 megapixel
Wide Camera - - - - 8 megapixel
Tele Camera - - - - -
Video Capture ? QVGA (320 x 240) WVGA / 480p WVGA / 480p 1080p HD
Front Camera - - Yes Yes 16 megapixel
Weight 3.53 oz
(100g)
6.3 oz
(179g)
5.7 oz
(162g)
5.09 oz
(144g)
8.25 oz
(234g)
Dimensions 4.3" x 1.9" x 0.6"
(109 x 48 x 15.2 mm)
4.4" x 2.3" x 0.9"
(112 x 58 x 22.9 mm)
5" x 2.42" x 0.6"
(127 x 61 x 15.2 mm)
4.78" x 2.54" x 0.46"
(121 x 64 x 11.7 mm)
7.04" x 3.12" x 0.37"
(179 x 79 x 9.4 mm)
Form Factor Slab Slab Slide Slab Slab
Platform / OS (proprietary) Palm OS Android Android Android
Network Bands

CDMA: 850, 1700, 1900

CDMA: 850, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

CDMA: 850, 1700, 1900

5G: 2, 5, 25, 26, 29, 30, 41, 48, 66, 70, 71, 77-C

4G LTE: 2, 4, 5, 12, 14, 26, 29, 30, 48, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology 1xRTT 1xRTT HSPA+ 21 EVDO rA NR (5G)
Features 
Barometer - - - - Yes
Fingerprint Reader - - - - Yes
stand-alone
Flashlight - - - - Yes
GPS / Location Yes n/a n/a n/a n/a
Water-Resistant - - - - Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size - n/a n/a n/a n/a
Hearing Aid Compatible Yes - Yes - Yes
Multiple Languages Yes n/a n/a n/a n/a
TTY/TDD (Digital) Yes - Yes Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes - - -
Mobile Hotspot - n/a n/a n/a n/a
NFC - - - - Yes
USB Yes
Micro-USB
- Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
Wi-Fi - - Yes
4 (802.11 b,g,n)
Yes Yes
6E (802.11 a,ac,ax,b,g,n)
Contacts
Picture ID - n/a n/a n/a n/a
Ringer ID Yes n/a n/a n/a n/a
Voice Dialing - n/a n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a n/a
Real-Music Ringers Yes n/a n/a n/a n/a
Data & Network
Data Tethering - n/a n/a n/a n/a
WAP / Web Browser Yes n/a n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes Yes - -
Touch Screen - Yes Yes Yes Yes
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client Yes n/a n/a n/a n/a
Instant Messaging Yes n/a n/a n/a n/a
MMS Yes n/a n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a n/a
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) Yes - Yes Yes Yes
Music Player Yes n/a n/a n/a n/a
Photo & Video
DLNA - - Yes - -
Power
Fast Charging - - - - Yes
Wireless Charging - - - - Yes
Productivity
Alarm Yes n/a n/a n/a n/a
Calculator Yes n/a n/a n/a n/a
Calendar Yes n/a n/a n/a n/a
To-Do List - n/a n/a n/a n/a
Voice Memo Yes n/a n/a n/a n/a
Software
BREW Yes n/a n/a n/a n/a
Games Yes n/a n/a n/a n/a
Voice
HD Voice - - - - Yes
Headset Jack (2.5 mm) - n/a n/a n/a n/a
Speaker Phone Yes Yes Yes Yes Yes
  ZTE Agent Palm Treo 650 (CDMA) Samsung Sidekick 4G ZTE Engage LT / Engage MT Boost Celero5G+ (2024)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone ZTE Agent Palm Treo 650 (CDMA) Samsung Sidekick 4G ZTE Engage LT / Engage MT Boost Celero5G+ (2024)

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