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| Phone | ZTE Z221 | Palm Treo 600 (CDMA) | Google Pixel 7 | Nokia 3555 |
| Current U.S. Carriers | (none) | (none) | Verizon | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2" diag. 4 : 3 |
? |
6.3" diag. 20 : 9 |
1.8" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
160 x 160 pixels LCD (Color) |
1080 x 2400 pixels (~418 ppi) AMOLED |
128 x 160 pixels (~114 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 90 Hz | ? |
| Battery | 900 mAh | ? | 4,355 mAh | ? |
| Processor | ? | ? | Google Tensor G2 | ? |
| RAM | ? | ? | 8 GB | ? |
| Storage | 142 MB | ? raw hardware | 128 GB * | ? raw hardware |
| Main Camera | Yes | Yes | 50 megapixel | Yes |
| Wide Camera | - | - | 12 megapixel | - |
| Tele Camera | - | - | - | - |
| Video Capture | QCIF (176 x 144) | - | 4K UHD | QCIF (176 x 144) |
| Front Camera | - | - | 11 megapixel | - |
| Weight |
3.24 oz (92g) |
6.2 oz (176g) |
6.9 oz (196g) |
3.32 oz (94g) |
| Dimensions |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm) |
6.13" x 2.88" x 0.34" (156 x 73 x 8.7 mm) |
3.94" x 1.75" x 0.83" (100 x 44 x 21 mm) |
| Form Factor | Clamshell | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | Palm OS | Android | (proprietary) |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
5G: 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 40, 41, 48, 66, 71, 75, 76, 77-A, 77-C, 78, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 32, 38, 39, 40, 41, 42, 46, 48, 66, 71 WCDMA: 1, 2, 4, 5, 6, 8, 19 GSM: 850, 900, 1800, 1900 |
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| Data Technology | HSDPA 3.6 | 1xRTT | NR (5G) | WCDMA (UMTS) |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes in-display (optical) |
- |
| Flashlight | - | - | Yes | - |
| GPS / Location | Yes | n/a | n/a | - |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
- |
Yes M3, T4 (very tele-coil compatible) |
Yes * M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | - |
| Alerts | ||||
| Extra Display | Yes | - | - | Yes |
| Ringer Profiles | Yes | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| Infrared (IR) | - | Yes | - | - |
| NFC | - | - | Yes | - |
| USB | Yes | Yes |
Yes USB Type C |
Yes |
| Wi-Fi | - | - |
Yes 6E (802.11 a,ac,ax,b,g,n) |
- |
| Contacts | ||||
| Picture ID | - | n/a | n/a | Yes |
| Ringer ID | - | n/a | n/a | Yes |
| Voice Dialing | - | n/a | n/a | Yes |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | n/a | n/a | Yes |
| Real-Music Ringers | Yes | n/a | n/a | Yes |
| Data & Network | ||||
| Data Tethering | - | n/a | n/a | - |
| Dual-SIM | - | - | Yes | - |
| WAP / Web Browser | Yes | n/a | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen | - | Yes |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | Yes | n/a | n/a | - |
| Instant Messaging | Yes | n/a | n/a | Yes * |
| MMS | Yes | n/a | n/a | Yes |
| Text Messaging Templates | Yes | n/a | n/a | Yes |
| Music | ||||
| Music Player | - | n/a | n/a | Yes |
| Stereo Speakers | - | - | Yes | - |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Wireless Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | Yes |
| Calculator | Yes | n/a | n/a | Yes |
| Calendar | Yes | n/a | n/a | Yes |
| To-Do List | - | n/a | n/a | Yes |
| Voice Memo | Yes | n/a | n/a | Yes |
| Software | ||||
| Games | Yes | n/a | n/a | Yes |
| Java (J2ME) | Yes | n/a | n/a | Yes |
| Voice | ||||
| Call Screening | - | - | Yes | - |
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | - | n/a | n/a | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| ZTE Z221 | Palm Treo 600 (CDMA) | Google Pixel 7 | Nokia 3555 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z221 | Palm Treo 600 (CDMA) | Google Pixel 7 | Nokia 3555 |
