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| Phone | ZTE Z221 | Nokia 3650 | ZTE Z331 | Essential Phone | HTC G2 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2" diag. 4 : 3 |
2.1" diag. 1 : 1 |
2.4" diag. 4 : 3 |
5.7" diag. 17.5 : 9 |
3.7" diag. 5 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
176 x 208 pixels (~130 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
1312 x 2560 pixels (~504 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~252 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz | 60 Hz |
| Battery | 900 mAh | 850 mAh | 950 mAh | 3,040 mAh | 1,300 mAh |
| Processor | ? | ? | ? | 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) | 800 MHz Qualcomm S2 MSM7230 |
| RAM | ? | ? | ? | 4 GB | ? |
| Storage | 142 MB | ? raw hardware | ? raw hardware | 128 GB | ? raw hardware |
| Main Camera | Yes | Yes | 3 megapixel | 13 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | QCIF (176 x 144) | ? | QCIF (176 x 144) | 4K UHD | 720p HD |
| Front Camera | - | - | - | 8 megapixel | - |
| Weight |
3.24 oz (92g) |
4.59 oz (130g) |
4 oz (113g) |
6.53 oz (185g) |
6.5 oz (184g) |
| Dimensions |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
5.1" x 2.24" x 1" (130 x 57 x 25.4 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
5.57" x 2.8" x 0.31" (141 x 71 x 7.8 mm) |
4.68" x 2.37" x 0.55" (119 x 60 x 14 mm) |
| Form Factor | Clamshell | Slab | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | S60 (Symbian) | (proprietary) | Android | Android |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 29, 30, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 3.6 | GPRS | HSDPA 3.6 | LTE (Cat 12) | HSPA 14.4 |
| Features | |||||
| Barometer | - | - | - | Yes | - |
| Fingerprint Reader | - | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | - | Yes | - |
| GPS / Location | Yes | n/a | Yes | n/a | n/a |
| Accessibility | |||||
| Hearing Aid Compatible | Yes | - | Yes | Yes | Yes |
| Multiple Languages | Yes | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | - |
| Alerts | |||||
| Extra Display | Yes | - | Yes | - | - |
| Ringer Profiles | Yes | Yes | Yes | - | - |
| Connectivity | |||||
| Bluetooth |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| Infrared (IR) | - | Yes | - | - | - |
| Mobile Hotspot | - | n/a | - | n/a | n/a |
| NFC | - | - | - | Yes | - |
| USB | Yes | - |
Yes Micro-USB |
Yes USB Type C |
Yes |
| Wi-Fi | - | - | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | |||||
| Picture ID | - | n/a | Yes | n/a | n/a |
| Ringer ID | - | n/a | Yes | n/a | n/a |
| Voice Dialing | - | n/a | - | n/a | n/a |
| Customization | |||||
| Changeable Body Plates | - | Yes | - | - | - |
| Custom Graphics | Yes | n/a | Yes | n/a | n/a |
| Custom Ringtones | Yes | n/a | Yes | n/a | n/a |
| Real-Music Ringers | Yes | n/a | Yes | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | Yes | n/a | n/a |
| WAP / Web Browser | Yes | n/a | Yes | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | Yes | n/a | n/a |
| Side Keys | Yes | - | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | - | Yes |
| Touch Screen | - | - | - | Yes | Yes |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | - | Yes |
| Messaging | |||||
| Email Client | Yes | n/a | Yes | n/a | n/a |
| EMS / Picture Messaging | - | n/a | - | n/a | n/a |
| Instant Messaging | Yes | n/a | Yes | n/a | n/a |
| MMS | Yes | n/a | Yes | n/a | n/a |
| Text Messaging Templates | Yes | n/a | Yes | n/a | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | - | - | Yes |
| Music Player | - | n/a | Yes | n/a | n/a |
| Power | |||||
| Fast Charging | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | Yes | n/a | Yes | n/a | n/a |
| Calculator | Yes | n/a | Yes | n/a | n/a |
| Calendar | Yes | n/a | Yes | n/a | n/a |
| To-Do List | - | n/a | - | n/a | n/a |
| Voice Memo | Yes | n/a | Yes | n/a | n/a |
| Software | |||||
| Games | Yes | n/a | Yes | n/a | n/a |
| Java (J2ME) | Yes | n/a | Yes | n/a | n/a |
| Voice | |||||
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| ZTE Z221 | Nokia 3650 | ZTE Z331 | Essential Phone | HTC G2 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z221 | Nokia 3650 | ZTE Z331 | Essential Phone | HTC G2 |
