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| Phone | Samsung SGH-X640 | Motorola T720 / T721 (GSM) | Samsung Galaxy J2 / J2 Pure / J2 Dash | Samsung Galaxy Z Flip6 | Nokia N91 |
| Current U.S. Carriers | (none) | (none) | (none) |
AT&T Boost Consumer Cellular Spectrum Mobile T-Mobile US Cellular Verizon Xfinity Mobile |
(none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? |
5" diag. 16 : 9 |
6.7" diag. 22 : 9 |
? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
120 x 160 pixels LCD (STN) |
540 x 960 pixels (~220 ppi) LCD (TFT/TFD) |
1080 x 2640 pixels (~426 ppi) AMOLED |
176 x 208 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 120 Hz | ? |
| Battery | 800 mAh | ? | 2,600 mAh | 4,000 mAh | ? |
| Processor | ? | ? | 1.4 GHz Samsung Exynos 7570 | 3.4 GHz Snapdragon 8 Gen 3 for Galaxy | ? |
| RAM | ? | ? | 2 GB | 12 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 16 GB | 256 GB * | ? raw hardware |
| Main Camera | Yes | - | 8 megapixel | 50 megapixel | 2 megapixel |
| Wide Camera | - | - | - | 12 megapixel | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | 1080p HD | 4K UHD | ? |
| Front Camera | - | - | 5 megapixel | 10 megapixel | - |
| Weight |
3 oz (85g) |
3.56 oz (101g) |
5.43 oz (154g) |
6.6 oz (187g) |
5.78 oz (164g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.5" x 1.87" x 0.83" (89 x 47 x 21.1 mm) |
5.65" x 2.84" x 0.35" (144 x 72 x 8.9 mm) |
3.35" x 2.83" x 0.59" (85 x 72 x 14.9 mm) |
4.45" x 2.17" x 0.87" (113 x 55 x 22.1 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Foldable | Slide |
| Platform / OS | (proprietary) | (proprietary) | Android | Android | S60 (Symbian) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 850, 1900 |
5G: 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 41, 48, 66, 70, 71, 77-A, 77-C, 78, 257, 258, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
WCDMA: 1 GSM: 900, 1800, 1900 |
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| Data Technology | GPRS | GPRS | LTE (Cat 4) | NR (5G) | EDGE |
| Features | |||||
| Barometer | - | - | - | Yes | - |
| Fingerprint Reader | - | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | Yes | Yes | - |
| Water-Resistant | - | - | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | |||||
| Hearing Aid Compatible | - | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes Hearing Aid Compatible (HAC-2019 / M3, T3) |
- |
| Multiple Languages | Yes | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes | Yes | - |
| Alerts | |||||
| Extra Display | - | Yes | - | Yes | - |
| Ringer Profiles | - | - | - | - | Yes |
| Connectivity | |||||
| Bluetooth | - | - | Yes | Yes | Yes |
| NFC | - | - | - | Yes | - |
| USB | - | - |
Yes Micro-USB |
Yes USB Type C |
Yes Mini-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
Yes 6E (802.11 a,ac,ax,b,g,n) |
Yes 802.11 b,g |
| Contacts | |||||
| Picture ID | Yes | - | n/a | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a | n/a |
| Voice Dialing | - | Yes | n/a | n/a | n/a |
| Customization | |||||
| Changeable Body Plates | - | Yes | - | - | - |
| Custom Graphics | Yes | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a | n/a |
| Real-Music Ringers | - | - | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | Yes | n/a | n/a | n/a |
| Dual-SIM | - | - | - | Yes | - |
| WAP / Web Browser | Yes | Yes | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | - | - | Yes | - | - |
| Messaging | |||||
| Email Client | - | Yes | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | 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 | Yes | n/a | n/a | n/a |
| Music | |||||
| FM Radio | - | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | - | Yes | - | Yes |
| Music Player | - | - | n/a | n/a | n/a |
| Power | |||||
| Fast Charging | - | - | - | Yes | - |
| Wireless Charging | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | n/a | n/a |
| Calculator | Yes | Yes | n/a | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a | n/a |
| To-Do List | Yes | - | n/a | n/a | n/a |
| Voice Memo | Yes | Yes | n/a | n/a | n/a |
| Software | |||||
| Games | Yes | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | Yes | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | - | - | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | Yes | n/a | n/a | n/a |
| Push-To-Talk | - | - | - | - | Yes * |
| Speaker Phone | Yes | - | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | Motorola T720 / T721 (GSM) | Samsung Galaxy J2 / J2 Pure / J2 Dash | Samsung Galaxy Z Flip6 | Nokia N91 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Motorola T720 / T721 (GSM) | Samsung Galaxy J2 / J2 Pure / J2 Dash | Samsung Galaxy Z Flip6 | Nokia N91 |
