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| Phone | Motorola Sidekick Slide | Samsung DoubleTime | Nokia Lumia 521 / 520 | Sony Ericsson K850 | Nubia RedMagic 5S |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
3.2" diag. 5 : 3 |
4" diag. 5 : 3 |
2.2" diag. 4 : 3 |
6.7" diag. 19.5 : 9 |
| Display Resolution & Type |
320 x 240 pixels LCD (TFT/TFD) |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
1080 x 2340 pixels (~388 ppi) AMOLED |
| Display Refresh | ? | 60 Hz | ? | ? | 144 Hz |
| Battery | ? | 1,200 mAh | 1,430 mAh | ? | 4,500 mAh |
| Processor | 225 MHz TI OMAP 850 | 600 MHz Qualcomm | 1 GHz Qualcomm Snapdragon S4 MSM8270 | ? | Qualcomm Snapdragon 865 |
| RAM | ? | ? | 512 MB | ? | 8 GB * |
| Storage | ? raw hardware | ? raw hardware | 8 GB | ? raw hardware | 128 GB * |
| Main Camera | 1 megapixel | 3 megapixel | 5 megapixel | 5 megapixel | 64 megapixel |
| Wide Camera | - | - | - | - | 8 megapixel |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | QVGA (320 x 240) | 720p HD | ? | 4K UHD |
| Front Camera | - | - | - | - | 8 megapixel |
| Weight |
5.3 oz (150g) |
5.22 oz (148g) |
4.39 oz (124g) |
4.2 oz (119g) |
7.76 oz (220g) |
| Dimensions |
4.65" x 2.44" x 0.69" (118 x 62 x 17.5 mm) |
4.45" x 2.44" x 0.59" (113 x 62 x 15 mm) |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
6.64" x 3.07" x 0.38" (169 x 78 x 9.8 mm) |
| Form Factor | Slide | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Windows | (proprietary) | Android |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
5G: 41, 78 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 26, 34, 38, 40, 41 WCDMA: 1, 2, 4, 5, 8, 19 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
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| Data Technology | EDGE | HSPA 7.2 | HSPA+ 21 | HSDPA 3.6 | NR (5G) |
| Features | |||||
| Fingerprint Reader | - | - | - | - | Yes |
| Flashlight | - | - | - | - | Yes |
| GPS / Location | - | n/a | n/a | - | n/a |
| Accessibility | |||||
| Adjustable Text Size | Yes | n/a | n/a | - | n/a |
| Hearing Aid Compatible | - | Yes | Yes | - | - |
| Multiple Languages | - | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | - |
| Alerts | |||||
| Ringer Profiles | Yes | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | - | n/a |
| USB | Yes |
Yes Micro-USB |
Yes | Yes |
Yes USB Type C |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes | - |
Yes 6 (802.11 a,ac,ax,b,g,n) |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | Yes | n/a |
| Ringer ID | Yes | n/a | n/a | Yes | n/a |
| Voice Dialing | - | n/a | n/a | Yes | n/a |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | Yes | n/a |
| Custom Ringtones | Yes | n/a | n/a | Yes | n/a |
| Real-Music Ringers | Yes | n/a | n/a | Yes | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | Yes | n/a |
| Dual-SIM | - | - | - | - | Yes |
| WAP / Web Browser | Yes | n/a | n/a | Yes | n/a |
| Input | |||||
| Predictive Text Entry | - | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | Yes | - | - | - |
| Touch Screen | - | Yes | Yes | - | Yes |
| Memory | |||||
| Memory Card Slot | Yes | Yes | Yes | Yes | - |
| Messaging | |||||
| Email Client | Yes | n/a | n/a | Yes | n/a |
| Instant Messaging | Yes | n/a | n/a | - | n/a |
| MMS | Yes | n/a | n/a | Yes | n/a |
| Text Messaging Templates | - | n/a | n/a | Yes | n/a |
| Music | |||||
| FM Radio | - | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | - | Yes |
| Music Player | Yes | n/a | n/a | Yes | n/a |
| Stereo Speakers | - | - | - | - | Yes |
| Photo & Video | |||||
| TV Output | - | - | - | - | Yes |
| Video Calling | - | n/a | n/a | Yes * | n/a |
| Power | |||||
| Fast Charging | - | - | - | - | Yes |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | Yes | n/a |
| Calculator | - | n/a | n/a | Yes | n/a |
| Calendar | Yes | n/a | n/a | Yes | n/a |
| To-Do List | Yes | n/a | n/a | Yes | n/a |
| Voice Memo | - | n/a | n/a | Yes | n/a |
| Software | |||||
| Games | Yes | n/a | n/a | Yes | n/a |
| Java (J2ME) | Yes | n/a | n/a | Yes | n/a |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | n/a | n/a | - | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Motorola Sidekick Slide | Samsung DoubleTime | Nokia Lumia 521 / 520 | Sony Ericsson K850 | Nubia RedMagic 5S | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Motorola Sidekick Slide | Samsung DoubleTime | Nokia Lumia 521 / 520 | Sony Ericsson K850 | Nubia RedMagic 5S |
