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| Phone | Nokia E66 | Essential Phone | Cricket Debut S2 / AT&T Calypso 4 |
| Current U.S. Carriers | (none) | (none) | AT&T |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
5.7" diag. 17.5 : 9 |
6.1" diag. 19.5 : 9 |
| Display Resolution & Type |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
1312 x 2560 pixels (~504 ppi) LCD (TFT/TFD) |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz |
| Battery | 1,000 mAh | 3,040 mAh | 3,000 mAh |
| Processor | ? | 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) | 2 GHz MediaTek Helio A22 (MT6761WB) |
| RAM | ? | 4 GB | 3 GB |
| Storage | ? raw hardware | 128 GB | 64 GB |
| Main Camera | 3 megapixel | 13 megapixel | 8 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | QVGA (320 x 240) | 4K UHD | ? |
| Front Camera | - | 8 megapixel | 5 megapixel |
| Weight |
4.27 oz (121g) |
6.53 oz (185g) |
5.64 oz (160g) |
| Dimensions |
4.21" x 1.93" x 0.51" (107 x 49 x 13 mm) |
5.57" x 2.8" x 0.31" (141 x 71 x 7.8 mm) |
6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm) |
| Platform / OS | S60 (Symbian) | Android | Android |
| Network Bands |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 29, 30, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8 |
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| Data Technology | HSDPA 3.6 | LTE (Cat 12) | LTE (Cat 4) |
| Features | |||
| Barometer | - | Yes | - |
| Fingerprint Reader | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | Yes |
| Accessibility | |||
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| TTY/TDD (Digital) | - | Yes | - |
| Alerts | |||
| Ringer Profiles | Yes | - | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Infrared (IR) | Yes | - | - |
| NFC | - | Yes | - |
| USB |
Yes Micro-USB |
Yes USB Type C |
Yes USB Type C |
| Wi-Fi |
Yes 802.11 b,g |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
| Input | |||
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | - | Yes |
| Music | |||
| FM Radio | Yes | - | - |
| Headphone Jack (3.5mm) | - | - | Yes |
| Power | |||
| Fast Charging | - | Yes | Yes |
| Voice | |||
| HD Voice | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes |
| Nokia E66 | Essential Phone | Cricket Debut S2 / AT&T Calypso 4 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia E66 | Essential Phone | Cricket Debut S2 / AT&T Calypso 4 |
