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| Phone | Nokia N81 | Boost Celero5G+ (2024) | Samsung Rugby 4 | Nokia Lumia 928 |
| Current U.S. Carriers | (none) | Boost | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
7" diag. 20.5 : 9 |
2.4" diag. 4 : 3 |
4.5" diag. 5 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
1080 x 2460 pixels (~384 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
768 x 1280 pixels (~332 ppi) AMOLED |
| Display Refresh | ? | 120 Hz | ? | ? |
| Battery | 1,050 mAh | 5,000 mAh | 1,300 mAh | 2,000 mAh |
| Processor | 369 MHz ARM 11 | 2.5 GHz MediaTek Dimensity 1050 (MT6879) | Intel XMM6230 | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 |
| RAM | ? | 8 GB | 128 MB | 1 GB |
| Storage | 8 GB * | 256 GB | 256 MB | 32 GB |
| Main Camera | 2 megapixel | 108 megapixel | 3 megapixel | 8 megapixel |
| Wide Camera | - | 8 megapixel | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | VGA (640 x 480) | 1080p HD | QVGA (320 x 240) | 1080p HD |
| Front Camera | - | 16 megapixel | - | 1 megapixel |
| Weight |
4.94 oz (140g) |
8.25 oz (234g) |
5.22 oz (148g) |
5.75 oz (163g) |
| Dimensions |
4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm) |
7.04" x 3.12" x 0.37" (179 x 79 x 9.4 mm) |
4.25" x 2.17" x 0.85" (108 x 55 x 21.6 mm) |
5.24" x 2.71" x 0.4" (133 x 69 x 10.1 mm) |
| Form Factor | Slide | Slab | Clamshell | Slab |
| Platform / OS | S60 (Symbian) | Android | (proprietary) | Windows |
| Network Bands |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
5G: 2, 5, 25, 26, 29, 30, 41, 48, 66, 70, 71, 77-C 4G LTE: 2, 4, 5, 12, 14, 26, 29, 30, 48, 66, 71 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 4, 13 WCDMA: 1, 2, 5, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | EDGE | NR (5G) | HSPA+ 21 | LTE (Cat 3) |
| Features | ||||
| Barometer | - | Yes | - | - |
| Fingerprint Reader | - |
Yes stand-alone |
- | - |
| Flashlight | - | Yes | - | - |
| GPS / Location | n/a | n/a | Yes | n/a |
| Ruggedized | - | - | Yes | - |
| Water-Resistant | - |
Yes IPX8 (SCUBA) |
Yes IPX7 (snorkeling) |
- |
| Accessibility | ||||
| Adjustable Text Size | n/a | n/a | Yes | 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 | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | - | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | - |
| Ringer Profiles | Yes | - | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | n/a | n/a | - | n/a |
| NFC | - | Yes | - | Yes |
| USB |
Yes Micro-USB |
Yes USB Type C |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi |
Yes 802.11 b,g |
Yes 6E (802.11 a,ac,ax,b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 a,b,g,n) |
| Contacts | ||||
| Picture ID | n/a | n/a | Yes | n/a |
| Ringer ID | n/a | n/a | Yes | n/a |
| Voice Dialing | n/a | n/a | Yes | n/a |
| Customization | ||||
| Custom Graphics | n/a | n/a | Yes | n/a |
| Custom Ringtones | n/a | n/a | Yes | n/a |
| Real-Music Ringers | n/a | n/a | Yes | n/a |
| Data & Network | ||||
| Data Tethering | n/a | n/a | - | n/a |
| WAP / Web Browser | n/a | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes * | Yes | Yes | - |
| Messaging | ||||
| Email Client | n/a | n/a | Yes | n/a |
| Instant Messaging | n/a | n/a | - | n/a |
| MMS | n/a | n/a | Yes | n/a |
| Text Messaging Templates | n/a | n/a | Yes | n/a |
| Music | ||||
| FM Radio | Yes | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes |
| Music Player | n/a | n/a | Yes | n/a |
| Stereo Speakers | Yes | - | - | - |
| Photo & Video | ||||
| Video Calling | n/a | n/a | - | n/a |
| Power | ||||
| Fast Charging | - | Yes | - | - |
| Wireless Charging | - | Yes | - | Yes |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | n/a |
| Calculator | n/a | n/a | Yes | n/a |
| Calendar | n/a | n/a | Yes | n/a |
| To-Do List | n/a | n/a | Yes | n/a |
| Voice Memo | n/a | n/a | Yes | n/a |
| Software | ||||
| Games | n/a | n/a | Yes | n/a |
| Java (J2ME) | n/a | n/a | Yes | n/a |
| Voice | ||||
| HD Voice | - | Yes | - | - |
| Push-To-Talk | Yes * | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Nokia N81 | Boost Celero5G+ (2024) | Samsung Rugby 4 | Nokia Lumia 928 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia N81 | Boost Celero5G+ (2024) | Samsung Rugby 4 | Nokia Lumia 928 |
