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| Phone | Samsung SGH-X640 | Sony Ericsson K850 | TCL 20 Pro 5G | HTC Desire 555 | ZTE Savvy |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2.2" diag. 4 : 3 |
6.7" diag. 20 : 9 |
5" diag. 16 : 9 |
4" diag. 5 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
1080 x 2400 pixels (~395 ppi) AMOLED |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz | 60 Hz |
| Battery | 800 mAh | ? | 4,500 mAh | 2,200 mAh | 1,650 mAh |
| Processor | ? | ? | 2 GHz Qualcomm Snapdragon 750G | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | 1 GHz Qualcomm MSM8625 |
| RAM | ? | ? | 6 GB | 2 GB | 768 MB |
| Storage | ? raw hardware | ? raw hardware | 256 GB | 16 GB | 4 GB |
| Main Camera | Yes | 5 megapixel | 48 megapixel | 8 megapixel | 5 megapixel |
| Wide Camera | - | - | 16 megapixel | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | ? | 4K UHD | 720p HD | WVGA / 480p |
| Front Camera | - | - | 32 megapixel | 5 megapixel | - |
| Weight |
3 oz (85g) |
4.2 oz (119g) |
6.82 oz (193g) |
4.93 oz (140g) |
4.43 oz (126g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
6.46" x 2.87" x 0.36" (164 x 73 x 9.1 mm) |
5.78" x 2.79" x 0.33" (147 x 71 x 8.4 mm) |
4.96" x 2.55" x 0.42" (126 x 65 x 10.7 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
5G: 2, 5, 7, 41, 66, 71, 78 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | GPRS | HSDPA 3.6 | NR (5G) | LTE (Cat 4) | EVDO rA |
| Features | |||||
| Barometer | - | - | Yes | - | - |
| Fingerprint Reader | - | - |
Yes in-display (optical) |
- | - |
| Flashlight | - | - | Yes | Yes | Yes |
| GPS / Location | - | - | n/a | n/a | n/a |
| Water-Resistant | - | - |
Yes IPX2 (drip) |
- | - |
| Accessibility | |||||
| Adjustable Text Size | - | - | n/a | n/a | n/a |
| Hearing Aid Compatible | - | - | Yes | Yes * | Yes |
| Multiple Languages | Yes | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Ringer Profiles | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | - | Yes | - | - |
| NFC | - | - | Yes | - | - |
| USB | - | Yes |
Yes USB Type C |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | |||||
| Picture ID | Yes | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a | n/a |
| Voice Dialing | - | Yes | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a | n/a |
| Real-Music Ringers | - | Yes | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | Yes | n/a | n/a | n/a |
| WAP / Web Browser | Yes | Yes | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - | - | Yes | Yes | Yes |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | Yes | 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 | Yes | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | Yes | n/a | n/a | n/a |
| Music | |||||
| FM Radio | - | Yes | Yes | Yes | - |
| Headphone Jack (3.5mm) | - | - | Yes | Yes | Yes |
| Music Player | - | Yes | n/a | n/a | n/a |
| Photo & Video | |||||
| DLNA | - | - | - | Yes | Yes |
| Miracast | - | - | - | Yes | - |
| Video Calling | - | Yes * | n/a | n/a | n/a |
| Power | |||||
| Fast Charging | - | - | Yes | - | - |
| Wireless Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | n/a | n/a |
| Calculator | Yes | Yes | n/a | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a | n/a |
| To-Do List | Yes | Yes | n/a | n/a | n/a |
| Voice Memo | Yes | Yes | n/a | n/a | n/a |
| Software | |||||
| Games | Yes | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | Yes | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | - | - | Yes | Yes | - |
| Headset Jack (2.5 mm) | Yes | - | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | Sony Ericsson K850 | TCL 20 Pro 5G | HTC Desire 555 | ZTE Savvy | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Sony Ericsson K850 | TCL 20 Pro 5G | HTC Desire 555 | ZTE Savvy |
