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| Phone | Ericsson T66 | ZTE Prelude / Avail 2 | Samsung Galaxy S21 | ZTE Groove |
| Current U.S. Carriers | (none) | (none) | Verizon | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
3.5" diag. 5 : 3 |
6.2" diag. 20 : 9 |
3.2" diag. 5 : 3 |
| Display Resolution & Type | ? |
320 x 480 pixels (~165 ppi) LCD (TFT/TFD) |
1080 x 2400 pixels (~424 ppi) AMOLED |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 120 Hz | 60 Hz |
| Battery | ? | 1,500 mAh | 4,000 mAh | 1,500 mAh |
| Processor | ? | 1 GHz Qualcomm Snapdragon MSM7225A | 2.8 GHz Qualcomm Snapdragon 888 | 800 MHz Qualcomm MSM7627A |
| RAM | ? | 512 MB | 8 GB | 512 MB |
| Storage | ? raw hardware | 4 GB | 128 GB * | 1 GB |
| Main Camera | - | 2 megapixel | 12 megapixel | 3 megapixel |
| Wide Camera | - | - | 12 megapixel | - |
| Tele Camera | - | - | 64 megapixel | - |
| Video Capture | - | VGA (640 x 480) | 8K | 720p HD |
| Front Camera | - | - | 10 megapixel | Yes |
| Weight |
2.08 oz (59g) |
4.4 oz (125g) |
6.03 oz (171g) |
4.5 oz (128g) |
| Dimensions |
3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm) |
4.6" x 2.44" x 0.45" (117 x 62 x 11.4 mm) |
5.97" x 2.8" x 0.31" (152 x 71 x 7.9 mm) |
4.67" x 2.46" x 0.55" (119 x 62 x 14 mm) |
| Form Factor | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 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 |
CDMA: 850, 1700, 1900 |
| Data Technology | - | HSPA 7.2 | NR (5G) | EVDO rA |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes in-display (ultrasonic) |
- |
| Flashlight | - | - | 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, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | - |
| Alerts | ||||
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | n/a |
| NFC | - | - | Yes | - |
| USB | - | Yes |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 6 (802.11 a,ac,ax,b,g,n) |
Yes |
| Contacts | ||||
| Picture ID | - | n/a | n/a | n/a |
| Ringer ID | - | 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 |
| 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 | - | 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 | - | 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 | - | n/a | n/a | n/a |
| Software | ||||
| Games | Yes | n/a | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Speaker Phone | - | Yes | Yes | Yes |
| Ericsson T66 | ZTE Prelude / Avail 2 | Samsung Galaxy S21 | ZTE Groove | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson T66 | ZTE Prelude / Avail 2 | Samsung Galaxy S21 | ZTE Groove |
