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| Phone | Sony Ericsson K850 | Samsung Galaxy Fold | Microsoft Surface Duo 2 | Nokia Lumia 928 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
7.3" diag. 4 : 3 |
8.3" diag. 4 : 3 |
4.5" diag. 5 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
1536 x 2152 pixels (~362 ppi) AMOLED |
2688 x 1892 pixels (~396 ppi) AMOLED |
768 x 1280 pixels (~332 ppi) AMOLED |
| Display Refresh | ? | 60 Hz | 90 Hz | ? |
| Battery | ? | 4,380 mAh | 4,449 mAh | 2,000 mAh |
| Processor | ? | 2.8 GHz Qualcomm Snapdragon 855 | Qualcomm Snapdragon 888 | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 |
| RAM | ? | 12 GB | 8 GB | 1 GB |
| Storage | ? raw hardware | 512 GB | 128 GB * | 32 GB |
| Main Camera | 5 megapixel | 12 megapixel | 12 megapixel | 8 megapixel |
| Wide Camera | - | 16 megapixel | 16 megapixel | - |
| Tele Camera | - | 12 megapixel | 12 megapixel | - |
| Video Capture | ? | 4K UHD | 4K UHD | 1080p HD |
| Front Camera | - | 10 megapixel | 12 megapixel | 1 megapixel |
| Weight |
4.2 oz (119g) |
9.74 oz (276g) |
10.02 oz (284g) |
5.75 oz (163g) |
| Dimensions |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
6.33" x 2.47" x 0.67" (161 x 63 x 17 mm) |
5.72" x 3.63" x 0.43" (145 x 92 x 11 mm) |
5.24" x 2.71" x 0.4" (133 x 69 x 10.1 mm) |
| Form Factor | Slab | Foldable | Unique | Slab |
| Platform / OS | (proprietary) | Android | Android | Windows |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 34, 38, 39, 40, 41, 46, 66, 71 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
5G: 1, 2, 3, 5, 7, 20, 25, 28, 38, 41, 66, 71, 77-C, 78, 257, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
4G LTE: 4, 13 WCDMA: 1, 2, 5, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 3.6 | LTE (Cat 18) | NR (5G) | LTE (Cat 3) |
| Features | ||||
| Barometer | - | Yes | - | - |
| Fingerprint Reader | - |
Yes stand-alone |
Yes stand-alone |
- |
| Flashlight | - | Yes | Yes | - |
| GPS / Location | - | n/a | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | - | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| MirrorLink | - | Yes | - | - |
| Mobile Hotspot | - | n/a | n/a | n/a |
| NFC | - | Yes | Yes | Yes |
| USB | Yes |
Yes USB Type C |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - |
Yes 6 (802.11 a,ac,ax,b,g,n) |
Yes 6 (802.11 a,ac,ax,b,g,n) |
Yes 4 (802.11 a,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a |
| Voice Dialing | Yes | n/a | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | n/a |
| Custom Ringtones | 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 |
| Dual-SIM | - | Yes | Yes | - |
| WAP / Web Browser | Yes | n/a | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | - | - |
| Messaging | ||||
| Email Client | Yes | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a |
| Music | ||||
| FM Radio | Yes | - | - | - |
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | Yes | n/a | n/a | n/a |
| Stereo Speakers | - | Yes | Yes | - |
| Photo & Video | ||||
| Miracast | - | - | Yes | - |
| TV Output | - | Yes | Yes | - |
| Video Calling | Yes * | n/a | n/a | n/a |
| Power | ||||
| Fast Charging | - | Yes | Yes | - |
| Wireless Charging | - | Yes | - | Yes |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a |
| To-Do List | Yes | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a |
| Software | ||||
| Games | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a |
| Voice | ||||
| HD Voice | - | Yes | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Sony Ericsson K850 | Samsung Galaxy Fold | Microsoft Surface Duo 2 | Nokia Lumia 928 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson K850 | Samsung Galaxy Fold | Microsoft Surface Duo 2 | Nokia Lumia 928 |
