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| Phone | Samsung Galaxy Ring / Prevail 2 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Coolpad Defiant | Samsung SPH-N270 (Matrix Phone) | Samsung Galaxy S21 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | Verizon |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
5" diag. 16 : 9 |
5" diag. 16 : 9 |
? |
6.2" diag. 20 : 9 |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
540 x 960 pixels (~220 ppi) LCD (TFT/TFD) |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
1080 x 2400 pixels (~424 ppi) AMOLED |
| Display Refresh | 60 Hz | 60 Hz | 60 Hz | ? | 120 Hz |
| Battery | 1,750 mAh | 2,600 mAh | 2,450 mAh | 1,000 mAh | 4,000 mAh |
| Processor | 1.4 GHz Qualcomm Snapdragon S2 MSM8655 | 1.4 GHz Samsung Exynos 7570 | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | ? | 2.8 GHz Qualcomm Snapdragon 888 |
| RAM | 1 GB | 2 GB | 1 GB | ? | 8 GB |
| Storage | 4 GB | 16 GB | 8 GB | ? raw hardware | 128 GB * |
| Main Camera | 5 megapixel | 8 megapixel | 5 megapixel | - | 12 megapixel |
| Wide Camera | - | - | - | - | 12 megapixel |
| Tele Camera | - | - | - | - | 64 megapixel |
| Video Capture | 720p HD | 1080p HD | 720p HD | - | 8K |
| Front Camera | 1 megapixel | 5 megapixel | 2 megapixel | - | 10 megapixel |
| Weight |
3.4 oz (96g) |
5.43 oz (154g) |
6.5 oz (184g) |
4.66 oz (132g) |
6.03 oz (171g) |
| Dimensions |
4.83" x 2.48" x 0.47" (123 x 63 x 11.9 mm) |
5.65" x 2.84" x 0.35" (144 x 72 x 8.9 mm) |
5.69" x 2.81" x 0.4" (145 x 71 x 10.2 mm) |
4.53" x 2.28" x 0.79" (115 x 58 x 20.1 mm) |
5.97" x 2.8" x 0.31" (152 x 71 x 7.9 mm) |
| Form Factor | Slab | Slab | Slab | Slide | Slab |
| Platform / OS | Android | Android | Android | (proprietary) | Android |
| Network Bands |
CDMA: 800, 850, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
5G: 2, 5, 12, 25, 30, 41, 66, 71, 77-C, 260, 261 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, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
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| Data Technology | EVDO rA | LTE (Cat 4) | LTE (Cat 4) | - | NR (5G) |
| Features | |||||
| Barometer | - | - | - | - | Yes |
| Fingerprint Reader | - | - | - | - |
Yes in-display (ultrasonic) |
| Flashlight | - | Yes | Yes | - | Yes |
| GPS / Location | n/a | n/a | n/a | Yes | n/a |
| Water-Resistant | - | - | - | - |
Yes IPX8 (SCUBA) |
| Accessibility | |||||
| Adjustable Text Size | n/a | n/a | n/a | - | n/a |
| Hearing Aid Compatible | Yes | Yes | Yes | - | Yes |
| Multiple Languages | n/a | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | - | Yes |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | - | Yes |
| NFC | - | - | - | - | Yes |
| USB | Yes |
Yes Micro-USB |
Yes Micro-USB |
- |
Yes USB Type C |
| Wi-Fi |
Yes 4 (802.11 a,b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
- |
Yes 6 (802.11 a,ac,ax,b,g,n) |
| Contacts | |||||
| Picture ID | n/a | n/a | n/a | Yes | n/a |
| Ringer ID | n/a | n/a | n/a | Yes | n/a |
| Voice Dialing | n/a | n/a | n/a | Yes | n/a |
| Customization | |||||
| Custom Graphics | n/a | n/a | n/a | - | n/a |
| Custom Ringtones | n/a | n/a | n/a | - | n/a |
| Real-Music Ringers | n/a | n/a | n/a | - | n/a |
| Data & Network | |||||
| WAP / Web Browser | n/a | n/a | n/a | - | n/a |
| Input | |||||
| Predictive Text Entry | n/a | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | - | Yes |
| Touch Screen | Yes | Yes | Yes | - | Yes |
| Memory | |||||
| Memory Card Slot | Yes | Yes | Yes | - | - |
| Messaging | |||||
| Email Client | n/a | n/a | n/a | - | n/a |
| Instant Messaging | n/a | n/a | n/a | - | n/a |
| MMS | n/a | n/a | n/a | - | n/a |
| Text Messaging Templates | n/a | n/a | n/a | - | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | Yes | Yes | Yes | - | - |
| Music Player | n/a | n/a | n/a | - | n/a |
| Stereo Speakers | - | - | - | - | Yes |
| Photo & Video | |||||
| DLNA | Yes | - | - | - | - |
| TV Output | - | - | - | - | Yes |
| Power | |||||
| Fast Charging | - | - | - | - | Yes |
| Wireless Charging | - | - | - | - | Yes |
| Productivity | |||||
| Alarm | n/a | n/a | n/a | Yes | n/a |
| Calculator | n/a | n/a | n/a | Yes | n/a |
| Calendar | n/a | n/a | n/a | Yes | n/a |
| To-Do List | n/a | n/a | n/a | Yes | n/a |
| Voice Memo | n/a | n/a | n/a | Yes | n/a |
| Software | |||||
| Games | n/a | n/a | n/a | - | n/a |
| Voice | |||||
| HD Voice | - | - | - | - | Yes |
| Headset Jack (2.5 mm) | n/a | n/a | n/a | Yes | n/a |
| Speaker Phone | Yes | Yes | Yes | - | Yes |
| Samsung Galaxy Ring / Prevail 2 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Coolpad Defiant | Samsung SPH-N270 (Matrix Phone) | Samsung Galaxy S21 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy Ring / Prevail 2 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Coolpad Defiant | Samsung SPH-N270 (Matrix Phone) | Samsung Galaxy S21 |
