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| Phone | Nokia XR21 | Cricket Debut S2 / AT&T Calypso 4 | Nokia 6255i / 6256i | Apple iPhone 4 (GSM) |
| Current U.S. Carriers | (none) |
AT&T Cricket |
(none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
6.5" diag. 20 : 9 |
6.1" diag. 19.5 : 9 |
? |
3.5" diag. 5 : 3 |
| Display Resolution & Type |
1080 x 2400 pixels (~406 ppi) LCD (TFT/TFD) |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
640 x 960 pixels (~330 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | 60 Hz | ? | 60 Hz |
| Battery | 4,800 mAh | 3,000 mAh | 1,070 mAh | ? |
| Processor | Snapdragon 695 | 2 GHz MediaTek Helio A22 (MT6761WB) | ? | Apple A4 |
| RAM | 6 GB | 3 GB | ? | ? |
| Storage | 128 GB | 64 GB | ? raw hardware | 32 GB * |
| Main Camera | 64 megapixel | 8 megapixel | Yes | 5 megapixel |
| Wide Camera | 8 megapixel | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 1080p HD | ? | ? | 720p HD |
| Front Camera | 16 megapixel | 5 megapixel | - | Yes |
| Weight |
8.16 oz (231g) |
5.64 oz (160g) |
4.23 oz (120g) |
4.8 oz (136g) |
| Dimensions |
6.61" x 3.09" x 0.41" (168 x 78 x 10.4 mm) |
6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm) |
3.36" x 1.87" x 0.97" (85 x 47 x 24.6 mm) |
4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm) |
| Form Factor | Slab | Slab | Clamshell | Slab |
| Platform / OS | Android | Android | (proprietary) | iOS |
| Network Bands |
5G: 1, 2, 3, 5, 7, 20, 25, 28, 40, 41, 66, 71, 77-C, 78, 79, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 43, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8 |
CDMA: 850, 1900 AMPS: 850 |
WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
| Data Technology | NR (5G) | LTE (Cat 4) | 1xRTT | HSPA 7.2 |
| Features | ||||
| Barometer | Yes | - | - | - |
| Fingerprint Reader |
Yes stand-alone |
- | - | - |
| Flashlight | Yes | Yes | - | - |
| GPS / Location | n/a | n/a | Yes | n/a |
| Ruggedized | Yes | - | - | - |
| Water-Resistant |
Yes IPX8 (SCUBA) |
- | - | - |
| Accessibility | ||||
| Adjustable Text Size | n/a | n/a | - | n/a |
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M4 (very compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | - | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | - |
| Ringer Profiles | - | - | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | - | Yes | - |
| Mobile Hotspot | n/a | n/a | - | n/a |
| NFC | Yes | - | - | - |
| USB |
Yes USB Type C |
Yes USB Type C |
Yes | Yes |
| Wi-Fi |
Yes 6 (802.11 a,ac,ax,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | n/a | n/a | Yes | n/a |
| Ringer ID | n/a | n/a | Yes | n/a |
| Voice Dialing | n/a | n/a | Yes | n/a |
| Customization | ||||
| Custom Graphics | n/a | n/a | Yes | n/a |
| Custom Ringtones | n/a | n/a | Yes | n/a |
| Real-Music Ringers | n/a | n/a | Yes | n/a |
| Data & Network | ||||
| Data Tethering | n/a | n/a | Yes | n/a |
| Dual-SIM | Yes | - | - | - |
| WAP / Web Browser | n/a | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | - |
| Messaging | ||||
| Email Client | n/a | n/a | Yes | n/a |
| EMS / Picture Messaging | n/a | n/a | Yes * | n/a |
| MMS | n/a | n/a | Yes | n/a |
| Text Messaging Templates | n/a | n/a | Yes | n/a |
| Music | ||||
| FM Radio | Yes | - | Yes | - |
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes |
| Music Player | n/a | n/a | Yes * | n/a |
| Photo & Video | ||||
| TV Output | - | - | - | Yes |
| Power | ||||
| Fast Charging | Yes | Yes | - | - |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | n/a |
| Calculator | n/a | n/a | Yes | n/a |
| Calendar | n/a | n/a | Yes | n/a |
| To-Do List | n/a | n/a | Yes | n/a |
| Voice Memo | n/a | n/a | Yes | n/a |
| Software | ||||
| BREW | n/a | n/a | Yes * | n/a |
| Games | n/a | n/a | Yes | n/a |
| Java (J2ME) | n/a | n/a | Yes * | n/a |
| Voice | ||||
| HD Voice | - | Yes | - | - |
| Headset Jack (2.5 mm) | n/a | n/a | Yes | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Nokia XR21 | Cricket Debut S2 / AT&T Calypso 4 | Nokia 6255i / 6256i | Apple iPhone 4 (GSM) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia XR21 | Cricket Debut S2 / AT&T Calypso 4 | Nokia 6255i / 6256i | Apple iPhone 4 (GSM) |
