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| Phone | Samsung SGH-E640 | Samsung Glyde U940 | Apple iPhone 11 Pro | ZTE Agent | Samsung Galaxy S21 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | Verizon |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2.8" diag. 16.5 : 9 |
5.8" diag. 19.5 : 9 |
2.4" diag. 4 : 3 |
6.2" diag. 20 : 9 |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
240 x 440 pixels (~182 ppi) LCD (TFT/TFD) |
1125 x 2436 pixels (~463 ppi) AMOLED |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
1080 x 2400 pixels (~424 ppi) AMOLED |
| Display Refresh | ? | ? | 60 Hz | ? | 120 Hz |
| Battery | 800 mAh | 1,000 mAh | 3,190 mAh | 900 mAh | 4,000 mAh |
| Processor | ? | ? | Apple A13 Bionic | ? | 2.8 GHz Qualcomm Snapdragon 888 |
| RAM | ? | ? | 4 GB | ? | 8 GB |
| Storage | ? raw hardware | ? raw hardware | 64 GB * | ? raw hardware | 128 GB * |
| Main Camera | 1 megapixel | 2 megapixel | 12 megapixel | 1 megapixel | 12 megapixel |
| Wide Camera | - | - | 12 megapixel | - | 12 megapixel |
| Tele Camera | - | - | 12 megapixel | - | 64 megapixel |
| Video Capture | QCIF (176 x 144) | QVGA (320 x 240) | 4K UHD | ? | 8K |
| Front Camera | - | - | 12 megapixel | - | 10 megapixel |
| Weight |
3.17 oz (90g) |
4.2 oz (119g) |
6.63 oz (188g) |
3.53 oz (100g) |
6.03 oz (171g) |
| Dimensions |
3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm) |
4.09" x 1.98" x 0.71" (104 x 50 x 18 mm) |
5.67" x 2.81" x 0.32" (144 x 71 x 8.1 mm) |
4.3" x 1.9" x 0.6" (109 x 48 x 15.2 mm) |
5.97" x 2.8" x 0.31" (152 x 71 x 7.9 mm) |
| Form Factor | Clamshell | Slide | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | iOS | (proprietary) | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 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 |
CDMA: 850, 1700, 1900 |
5G: 2, 5, 12, 25, 30, 41, 66, 71, 77-C, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | EVDO r0 | LTE (Cat 18) | 1xRTT | NR (5G) |
| Features | |||||
| Barometer | - | - | Yes | - | Yes |
| Fingerprint Reader | - | - | - | - |
Yes in-display (ultrasonic) |
| Flashlight | - | - | Yes | - | Yes |
| GPS / Location | - | Yes | n/a | Yes | n/a |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- |
Yes IPX8 (SCUBA) |
| Accessibility | |||||
| Hearing Aid Compatible | - |
Yes M4 (very compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | Yes | - | - | - | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| NFC | - | - | Yes | - | Yes |
| USB | Yes | Yes | Yes |
Yes Micro-USB |
Yes USB Type C |
| UWB | - | - | Yes | - | - |
| Wi-Fi | - | - |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- |
Yes 6 (802.11 a,ac,ax,b,g,n) |
| Contacts | |||||
| Picture ID | Yes | Yes | n/a | - | n/a |
| Ringer ID | Yes | Yes | n/a | Yes | n/a |
| Voice Dialing | - | Yes | n/a | - | n/a |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | Yes | n/a |
| Custom Ringtones | Yes | Yes | n/a | Yes | n/a |
| Real-Music Ringers | Yes | Yes | n/a | Yes | n/a |
| Data & Network | |||||
| Data Tethering | - | Yes | n/a | - | n/a |
| Dual-SIM | - | - | Yes | - | - |
| WAP / Web Browser | Yes | Yes | n/a | Yes | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - | - |
| Touch Screen | - | Yes |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | Yes | - | Yes | - |
| Messaging | |||||
| Email Client | Yes | - | n/a | Yes | n/a |
| EMS / Picture Messaging | Yes | - | n/a | - | n/a |
| Instant Messaging | - | - | n/a | Yes | n/a |
| MMS | Yes | Yes | n/a | Yes | n/a |
| Text Messaging Templates | Yes | Yes | n/a | Yes | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | - | Yes | - |
| Music Player | Yes | Yes | n/a | Yes | n/a |
| Stereo Speakers | - | - | Yes | - | Yes |
| Photo & Video | |||||
| TV Output | - | - | Yes | - | Yes |
| Power | |||||
| Fast Charging | - | - | Yes | - | Yes |
| Wireless Charging | - | - | Yes | - | Yes |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | Yes | n/a |
| Calculator | Yes | Yes | n/a | Yes | n/a |
| Calendar | Yes | Yes | n/a | Yes | n/a |
| To-Do List | Yes | - | n/a | - | n/a |
| Voice Memo | Yes | - | n/a | Yes | n/a |
| Software | |||||
| BREW | - | Yes | n/a | Yes | n/a |
| Games | Yes | Yes | n/a | Yes | n/a |
| Java (J2ME) | Yes | - | n/a | - | n/a |
| Voice | |||||
| HD Voice | - | - | Yes | - | Yes |
| Headset Jack (2.5 mm) | - | Yes | n/a | - | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung SGH-E640 | Samsung Glyde U940 | Apple iPhone 11 Pro | ZTE Agent | Samsung Galaxy S21 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-E640 | Samsung Glyde U940 | Apple iPhone 11 Pro | ZTE Agent | Samsung Galaxy S21 |
