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| Phone | Samsung SGH-E640 | ZTE Engage LT / Engage MT | OnePlus 12 | ZTE Groove |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
4" diag. 5 : 3 |
6.8" diag. 20 : 9 |
3.2" diag. 5 : 3 |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
1440 x 3168 pixels (~510 ppi) AMOLED |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 120 Hz | 60 Hz |
| Battery | 800 mAh | 1,900 mAh | 5,400 mAh | 1,500 mAh |
| Processor | ? | ? | Snapdragon 8 Gen 3 | 800 MHz Qualcomm MSM7627A |
| RAM | ? | 1 GB | 12 GB * | 512 MB |
| Storage | ? raw hardware | 4 GB | 256 GB * | 1 GB |
| Main Camera | 1 megapixel | 3 megapixel | 50 megapixel | 3 megapixel |
| Wide Camera | - | - | 48 megapixel | - |
| Tele Camera | - | - | 64 megapixel | - |
| Video Capture | QCIF (176 x 144) | WVGA / 480p | 8K | 720p HD |
| Front Camera | - | Yes | 32 megapixel | Yes |
| Weight |
3.17 oz (90g) |
5.09 oz (144g) |
7.76 oz (220g) |
4.5 oz (128g) |
| Dimensions |
3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm) |
4.78" x 2.54" x 0.46" (121 x 64 x 11.7 mm) |
6.47" x 2.98" x 0.36" (164 x 76 x 9.1 mm) |
4.67" x 2.46" x 0.55" (119 x 62 x 14 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
5G: 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 38, 41, 66, 71, 77-C, 78 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28, 30, 32, 38, 39, 40, 41, 48, 66, 71 WCDMA: 1, 2, 4, 5, 6, 8, 19 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
| Data Technology | GPRS | EVDO rA | NR (5G) | EVDO rA |
| Features | ||||
| Fingerprint Reader | - | - |
Yes in-display (optical) |
- |
| Flashlight | - | - | Yes | - |
| GPS / Location | - | n/a | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | n/a | n/a |
| Hearing Aid Compatible | - | - |
Yes M3, T4 (very tele-coil compatible) |
- |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | - | - |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | n/a |
| NFC | - | - | Yes | - |
| USB | Yes |
Yes Micro-USB |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - | Yes |
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 | Yes | 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 |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | Yes | 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 | Yes | n/a | n/a | n/a |
| 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 | ||||
| HD Voice | - | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung SGH-E640 | ZTE Engage LT / Engage MT | OnePlus 12 | ZTE Groove | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-E640 | ZTE Engage LT / Engage MT | OnePlus 12 | ZTE Groove |
