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| Phone | Samsung SGH-X640 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Google Pixel 9 Pro | ZTE Engage LT / Engage MT |
| Current U.S. Carriers | (none) | (none) |
AT&T Spectrum Mobile T-Mobile US Cellular Verizon Xfinity Mobile |
(none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
5" diag. 16 : 9 |
6.3" diag. 20 : 9 |
4" diag. 5 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
540 x 960 pixels (~220 ppi) LCD (TFT/TFD) |
1280 x 2856 pixels (~497 ppi) AMOLED |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 120 Hz | 60 Hz |
| Battery | 800 mAh | 2,600 mAh | 4,700 mAh | 1,900 mAh |
| Processor | ? | 1.4 GHz Samsung Exynos 7570 | Google Tensor G4 | ? |
| RAM | ? | 2 GB | 16 GB | 1 GB |
| Storage | ? raw hardware | 16 GB | 128 GB * | 4 GB |
| Main Camera | Yes | 8 megapixel | 50 megapixel | 3 megapixel |
| Wide Camera | - | - | 48 megapixel | - |
| Tele Camera | - | - | 48 megapixel | - |
| Video Capture | - | 1080p HD | 4K UHD | WVGA / 480p |
| Front Camera | - | 5 megapixel | 42 megapixel | Yes |
| Weight |
3 oz (85g) |
5.43 oz (154g) |
7 oz (198g) |
5.09 oz (144g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.65" x 2.84" x 0.35" (144 x 72 x 8.9 mm) |
6" x 2.8" x 0.3" (152 x 71 x 7.6 mm) |
4.78" x 2.54" x 0.46" (121 x 64 x 11.7 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
5G: 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 70, 71, 77-A, 77-C, 78, 258, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 71 WCDMA: 1, 2, 4, 5, 6, 8, 19 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
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| Data Technology | GPRS | LTE (Cat 4) | NR (5G) | EVDO rA |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes in-display (ultrasonic) |
- |
| Flashlight | - | Yes | Yes | - |
| GPS / Location | - | n/a | n/a | n/a |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes Hearing Aid Compatible (HAC-2019 / M3, T3) |
- |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| NFC | - | - | Yes | - |
| Thread | - | - | Yes | - |
| USB | - |
Yes Micro-USB |
Yes USB Type C |
Yes Micro-USB |
| UWB | - | - | Yes | - |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 7 (802.11 a,ac,ax,b,be,g,n) |
Yes |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a |
| Voice Dialing | - | 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 | - |
| Satellite | - | - | 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 |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | - | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | 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 | ||||
| TV Output | - | - | Yes | - |
| Power | ||||
| Fast Charging | - | - | 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 |
| To-Do List | Yes | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a |
| Software | ||||
| Games | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a |
| Voice | ||||
| Call Screening | - | - | Yes | - |
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung SGH-X640 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Google Pixel 9 Pro | ZTE Engage LT / Engage MT | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Google Pixel 9 Pro | ZTE Engage LT / Engage MT |
