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| Phone | Palm Treo 650 (CDMA) | Samsung Knack U310 | Motorola Droid 2 | Google Pixel 3a XL |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2.2" diag. 4 : 3 |
3.7" diag. 16 : 9 |
6" diag. 18 : 9 |
| Display Resolution & Type |
320 x 320 pixels LCD (TFT/TFD) |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
480 x 854 pixels (~265 ppi) LCD (TFT/TFD) |
1080 x 2160 pixels (~402 ppi) AMOLED |
| Display Refresh | ? | ? | 60 Hz | 60 Hz |
| Battery | ? | 1,000 mAh | 1,390 mAh | 3,700 mAh |
| Processor | 312 MHz Intel XScale PXA270 | ? | 1 GHz TI OMAP3620 | 2 GHz Qualcomm Snapdragon 670 |
| RAM | ? | ? | ? | 4 GB |
| Storage | ? raw hardware | ? raw hardware | 8 GB | 64 GB |
| Main Camera | Yes | - | 5 megapixel | 12 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QVGA (320 x 240) | - | WVGA / 480p | 4K UHD |
| Front Camera | - | - | - | 8 megapixel |
| Weight |
6.3 oz (179g) |
3.63 oz (103g) |
5.96 oz (169g) |
5.89 oz (167g) |
| Dimensions |
4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm) |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
4.58" x 2.38" x 0.54" (116 x 61 x 13.7 mm) |
6.3" x 3" x 0.3" (160 x 76 x 7.6 mm) |
| Form Factor | Slab | Clamshell | Slide | Slab |
| Platform / OS | Palm OS | (proprietary) | Android | Android |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | 1xRTT | - | EVDO rA | LTE (Cat 11) |
| Features | ||||
| Barometer | - | - | - | Yes |
| Fingerprint Reader | - | - | - |
Yes stand-alone |
| Flashlight | - | - | - | Yes |
| GPS / Location | n/a | Yes | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | n/a | Yes | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| Infrared (IR) | Yes | - | - | - |
| Mobile Hotspot | n/a | - | n/a | n/a |
| NFC | - | - | - | Yes |
| USB | - | - |
Yes Micro-USB |
Yes USB Type C |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | n/a | - | n/a | n/a |
| Ringer ID | n/a | - | n/a | n/a |
| Voice Dialing | n/a | Yes | n/a | n/a |
| Customization | ||||
| Custom Graphics | n/a | - | n/a | n/a |
| Custom Ringtones | n/a | - | n/a | n/a |
| Real-Music Ringers | n/a | - | n/a | n/a |
| Data & Network | ||||
| Data Tethering | n/a | - | n/a | n/a |
| WAP / Web Browser | n/a | - | n/a | n/a |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | Yes | - |
| Touch Screen | Yes | - |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | - |
| Messaging | ||||
| Email Client | n/a | - | n/a | n/a |
| EMS / Picture Messaging | n/a | Yes | n/a | n/a |
| Instant Messaging | n/a | - | n/a | n/a |
| MMS | n/a | - | n/a | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes |
| Music Player | n/a | - | n/a | n/a |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | n/a |
| Calculator | n/a | Yes | n/a | n/a |
| Calendar | n/a | Yes | n/a | n/a |
| To-Do List | n/a | - | n/a | n/a |
| Software | ||||
| Games | n/a | - | n/a | n/a |
| Voice | ||||
| Call Screening | - | - | - | Yes |
| HD Voice | - | - | - | Yes |
| Headset Jack (2.5 mm) | n/a | Yes | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Palm Treo 650 (CDMA) | Samsung Knack U310 | Motorola Droid 2 | Google Pixel 3a XL | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Palm Treo 650 (CDMA) | Samsung Knack U310 | Motorola Droid 2 | Google Pixel 3a XL |
