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| Phone | ZTE Z432 / Altair 2 | BlackBerry Classic (CDMA) | Samsung Galaxy S21 | ZTE Blade Vantage | Samsung SCH-A990 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
3.5" diag. 1 : 1 |
6.2" diag. 20 : 9 |
5" diag. 16 : 9 |
? |
| Display Resolution & Type |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
720 x 720 pixels (~291 ppi) LCD (TFT/TFD) |
1080 x 2400 pixels (~424 ppi) AMOLED |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 120 Hz | 60 Hz | ? |
| Battery | 900 mAh | 2,515 mAh | 4,000 mAh | 2,500 mAh | 1,000 mAh |
| Processor | Qualcomm QSC6270 | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 | 2.8 GHz Qualcomm Snapdragon 888 | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? |
| RAM | 128 MB | 2 GB | 8 GB | 2 GB | ? |
| Storage | 256 MB | 16 GB | 128 GB * | 16 GB | ? raw hardware |
| Main Camera | 2 megapixel | 8 megapixel | 12 megapixel | 8 megapixel | 3 megapixel |
| Wide Camera | - | - | 12 megapixel | - | - |
| Tele Camera | - | - | 64 megapixel | - | - |
| Video Capture | QVGA (320 x 240) | 1080p HD | 8K | 720p HD | ? |
| Front Camera | - | 2 megapixel | 10 megapixel | 2 megapixel | - |
| Weight |
3.24 oz (92g) |
6.28 oz (178g) |
6.03 oz (171g) |
5.29 oz (150g) |
4.4 oz (125g) |
| Dimensions |
4.48" x 2.38" x 0.44" (114 x 60 x 11.2 mm) |
5.16" x 2.85" x 0.4" (131 x 72 x 10.2 mm) |
5.97" x 2.8" x 0.31" (152 x 71 x 7.9 mm) |
5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
| Form Factor | Slab | Slab | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | BlackBerry 10 | Android | Android | (proprietary) |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 1900 |
4G LTE: 3, 4, 13 WCDMA: 1, 2, 5, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
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 |
4G LTE: 2, 4, 5, 13 |
CDMA: 850, 1900 |
| Data Technology | HSDPA 3.6 | LTE (Cat 3) | NR (5G) | LTE (Cat 4) | EVDO r0 |
| Features | |||||
| Barometer | - | - | Yes | - | - |
| Fingerprint Reader | - | - |
Yes in-display (ultrasonic) |
- | - |
| Flashlight | - | - | Yes | Yes | Yes |
| GPS / Location | Yes | n/a | n/a | n/a | Yes |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- | - |
| Accessibility | |||||
| Adjustable Text Size | Yes | n/a | n/a | n/a | - |
| Hearing Aid Compatible | Yes | Yes | Yes | Yes | Yes |
| Multiple Languages | Yes | n/a | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | - | - | - | - | Yes |
| Ringer Profiles | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| Mobile Hotspot | - | n/a | n/a | n/a | - |
| NFC | - | Yes | Yes | - | - |
| USB |
Yes Micro-USB |
Yes Micro-USB |
Yes USB Type C |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 4 (802.11 a,b,g,n) |
Yes 6 (802.11 a,ac,ax,b,g,n) |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | n/a | Yes |
| Ringer ID | Yes | n/a | n/a | n/a | Yes |
| Voice Dialing | - | n/a | n/a | n/a | Yes |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | n/a | Yes |
| Custom Ringtones | - | n/a | n/a | n/a | Yes |
| Real-Music Ringers | Yes | n/a | n/a | n/a | Yes |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | n/a | Yes |
| WAP / Web Browser | Yes | n/a | n/a | n/a | Yes |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | n/a | Yes |
| 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 | n/a | - |
| EMS / Picture Messaging | - | n/a | n/a | n/a | Yes |
| Instant Messaging | - | n/a | n/a | n/a | - |
| MMS | Yes | n/a | n/a | n/a | Yes |
| Text Messaging Templates | Yes | n/a | n/a | n/a | Yes |
| Music | |||||
| FM Radio | - | Yes | - | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes | - |
| Music Player | Yes | n/a | n/a | n/a | Yes |
| Stereo Speakers | - | - | Yes | - | Yes |
| Photo & Video | |||||
| DLNA | - | Yes | - | - | - |
| Miracast | - | Yes | - | - | - |
| TV Output | - | Yes | Yes | - | Yes |
| Power | |||||
| Fast Charging | - | - | Yes | - | - |
| Wireless Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | n/a | Yes |
| Calculator | Yes | n/a | n/a | n/a | Yes |
| Calendar | Yes | n/a | n/a | n/a | Yes |
| To-Do List | - | n/a | n/a | n/a | - |
| Voice Memo | Yes | n/a | n/a | n/a | Yes |
| Software | |||||
| BREW | - | n/a | n/a | n/a | Yes |
| Games | - | n/a | n/a | n/a | Yes |
| Voice | |||||
| HD Voice | - | - | Yes | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| ZTE Z432 / Altair 2 | BlackBerry Classic (CDMA) | Samsung Galaxy S21 | ZTE Blade Vantage | Samsung SCH-A990 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z432 / Altair 2 | BlackBerry Classic (CDMA) | Samsung Galaxy S21 | ZTE Blade Vantage | Samsung SCH-A990 |
