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| Phone | Samsung SGH-X640 | Ericsson T66 | Apple iPhone 4 (GSM) | TCL 50 XE 5G / 50 XE NXTPAPER 5G | AT&T Cingular Flip IV / Cricket Debut Flip |
| Current U.S. Carriers | (none) | (none) | (none) |
Spectrum Mobile Tracfone Verizon |
(none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? |
3.5" diag. 5 : 3 |
6.6" diag. 20 : 9 |
2.8" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
? |
640 x 960 pixels (~330 ppi) LCD (TFT/TFD) |
720 x 1612 pixels (~269 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~143 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 90 Hz | ? |
| Battery | 800 mAh | ? | ? | 5,010 mAh | 1,450 mAh |
| Processor | ? | ? | Apple A4 | 1.8 GHz MediaTek Dimensity 6100+ (MT6835V) | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) |
| RAM | ? | ? | ? | 4 GB | 512 MB |
| Storage | ? raw hardware | ? raw hardware | 32 GB * | 128 GB | 4 GB |
| Main Camera | Yes | - | 5 megapixel | 50 megapixel | 2 megapixel |
| Wide Camera | - | - | - | 5 megapixel | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | 720p HD | 1080p HD | WVGA / 480p |
| Front Camera | - | - | Yes | 8 megapixel | - |
| Weight |
3 oz (85g) |
2.08 oz (59g) |
4.8 oz (136g) |
6.53 oz (185g) |
4.59 oz (130g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm) |
4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm) |
6.46" x 2.95" x 0.33" (164 x 75 x 8.3 mm) |
4.13" x 2.14" x 0.74" (105 x 54 x 18.9 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | iOS | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
5G: 2, 5, 25, 41, 48, 66, 71, 77-C, 78 4G LTE: 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 28, 41, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 14 WCDMA: 2, 4, 5 |
| Data Technology | GPRS | - | HSPA 7.2 | NR (5G) | LTE (Cat 4) |
| Features | |||||
| Barometer | - | - | - | Yes | - |
| Fingerprint Reader | - | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | - | Yes | - |
| GPS / Location | - | - | n/a | n/a | Yes |
| Accessibility | |||||
| Adjustable Text Size | - | - | n/a | n/a | Yes |
| Hearing Aid Compatible | - | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | - | - | Yes | - | Yes |
| Alerts | |||||
| Extra Display | - | - | - | - | Yes |
| Ringer Profiles | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | - | - | Yes | Yes | Yes |
| Mobile Hotspot | - | - | n/a | n/a | Yes |
| NFC | - | - | - | Yes | - |
| USB | - | - | Yes |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | |||||
| Picture ID | Yes | - | n/a | n/a | Yes |
| Ringer ID | Yes | - | n/a | n/a | - |
| Voice Dialing | - | - | n/a | n/a | Yes |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | n/a | Yes |
| Real-Music Ringers | - | - | n/a | n/a | Yes |
| Data & Network | |||||
| Data Tethering | - | - | n/a | n/a | - |
| Dual-SIM | - | - | - | Yes | - |
| WAP / Web Browser | Yes | Yes | n/a | n/a | Yes |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | - | - | - | Yes | Yes |
| Messaging | |||||
| Email Client | - | - | n/a | n/a | Yes |
| EMS / Picture Messaging | Yes | Yes | n/a | n/a | - |
| MMS | Yes | - | n/a | n/a | Yes |
| Text Messaging Templates | Yes | Yes | n/a | n/a | - |
| Music | |||||
| FM Radio | - | - | - | Yes | Yes |
| Headphone Jack (3.5mm) | - | - | Yes | Yes | Yes |
| Music Player | - | - | n/a | n/a | Yes |
| Stereo Speakers | - | - | - | Yes | - |
| Photo & Video | |||||
| TV Output | - | - | Yes | - | - |
| Power | |||||
| Fast Charging | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | n/a | Yes |
| Calculator | Yes | Yes | n/a | n/a | Yes |
| Calendar | Yes | Yes | n/a | n/a | Yes |
| To-Do List | Yes | Yes | n/a | n/a | - |
| Voice Memo | Yes | - | n/a | n/a | Yes |
| Software | |||||
| Games | Yes | Yes | n/a | n/a | Yes |
| 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 |
| * Some versions only | |||||
| Samsung SGH-X640 | Ericsson T66 | Apple iPhone 4 (GSM) | TCL 50 XE 5G / 50 XE NXTPAPER 5G | AT&T Cingular Flip IV / Cricket Debut Flip | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Ericsson T66 | Apple iPhone 4 (GSM) | TCL 50 XE 5G / 50 XE NXTPAPER 5G | AT&T Cingular Flip IV / Cricket Debut Flip |
