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| Phone | Sony Ericsson K850 | Samsung SGH-X640 | Samsung Galaxy Note10+ 5G (T-Mobile, AT&T) | ZTE Savvy |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
? |
6.8" diag. 19 : 9 |
4" diag. 5 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
1440 x 3040 pixels (~495 ppi) AMOLED |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz |
| Battery | ? | 800 mAh | 4,300 mAh | 1,650 mAh |
| Processor | ? | ? | Qualcomm Snapdragon 855 | 1 GHz Qualcomm MSM8625 |
| RAM | ? | ? | 12 GB | 768 MB |
| Storage | ? raw hardware | ? raw hardware | 256 GB * | 4 GB |
| Main Camera | 5 megapixel | Yes | 12 megapixel | 5 megapixel |
| Wide Camera | - | - | 16 megapixel | - |
| Tele Camera | - | - | 12 megapixel | - |
| Video Capture | ? | - | 4K UHD | WVGA / 480p |
| Front Camera | - | - | 10 megapixel | - |
| Weight |
4.2 oz (119g) |
3 oz (85g) |
6.98 oz (198g) |
4.43 oz (126g) |
| Dimensions |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6.39" x 3.04" x 0.31" (162 x 77 x 7.9 mm) |
4.96" x 2.55" x 0.42" (126 x 65 x 10.7 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | Android |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
5G: 5, 71 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, 3, 4, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | HSDPA 3.6 | GPRS | NR (5G) | EVDO rA |
| Features | ||||
| Fingerprint Reader | - | - |
Yes in-display (ultrasonic) |
- |
| Flashlight | - | - | Yes | Yes |
| GPS / Location | - | - | n/a | n/a |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | ||||
| Adjustable Text Size | - | - | n/a | n/a |
| Hearing Aid Compatible | - | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| MirrorLink | - | - | Yes | - |
| NFC | - | - | Yes | - |
| USB | Yes | - |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 6 (802.11 a,ac,ax,b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a |
| Voice Dialing | Yes | - | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a |
| Real-Music Ringers | Yes | - | n/a | n/a |
| Data & Network | ||||
| Data Tethering | Yes | - | n/a | n/a |
| WAP / Web Browser | Yes | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Stylus | - | - | Yes | - |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | - | n/a | n/a |
| EMS / Picture Messaging | - | Yes | n/a | n/a |
| Instant Messaging | - | - | n/a | n/a |
| MMS | Yes | Yes | n/a | n/a |
| Text Messaging Templates | Yes | Yes | n/a | n/a |
| Music | ||||
| FM Radio | Yes | - | - | - |
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | Yes | - | n/a | n/a |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| TV Output | - | - | Yes | - |
| Video Calling | Yes * | - | n/a | n/a |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Wireless Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | n/a |
| Calculator | Yes | Yes | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a |
| To-Do List | Yes | Yes | n/a | n/a |
| Voice Memo | Yes | Yes | n/a | n/a |
| Software | ||||
| Games | Yes | Yes | n/a | n/a |
| Java (J2ME) | Yes | Yes | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | - | Yes | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Sony Ericsson K850 | Samsung SGH-X640 | Samsung Galaxy Note10+ 5G (T-Mobile, AT&T) | ZTE Savvy | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson K850 | Samsung SGH-X640 | Samsung Galaxy Note10+ 5G (T-Mobile, AT&T) | ZTE Savvy |
