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| Phone | Samsung UpStage M620 | Samsung SCH-A990 | HTC Amaze 4G |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
2.1" diag. 4 : 3 |
? |
4.3" diag. 16 : 9 |
| Display Resolution & Type |
176 x 220 pixels (~134 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
540 x 960 pixels (~256 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz |
| Battery | 620 mAh | 1,000 mAh | 1,730 mAh |
| Processor | ? | ? | 1.5 GHz Qualcomm Snapdragon S3 dual-core |
| RAM | ? | ? | 1 GB |
| Storage | ? raw hardware | ? raw hardware | 16 GB |
| Main Camera | 1 megapixel | 3 megapixel | 8 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | ? | ? | 1080p HD |
| Front Camera | - | - | 2 megapixel |
| Weight |
2.57 oz (73g) |
4.4 oz (125g) |
6.1 oz (173g) |
| Dimensions |
4.07" x 1.73" x 0.37" (103 x 44 x 9.4 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
5.12" x 2.58" x 0.46" (130 x 66 x 11.7 mm) |
| Form Factor | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | EVDO r0 | EVDO r0 | HSPA+ 42 |
| Features | |||
| Flashlight | - | Yes | Yes |
| GPS / Location | - | Yes | n/a |
| Accessibility | |||
| Adjustable Text Size | Yes | - | n/a |
| Hearing Aid Compatible |
Yes M4 (very compatible) |
Yes M3 (mostly compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | - | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Alerts | |||
| Extra Display | Yes | Yes | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Mobile Hotspot | - | - | n/a |
| NFC | - | - | Yes |
| USB | Yes | Yes | Yes |
| Wi-Fi | - | - |
Yes 4 (802.11 a,b,g,n) |
| Contacts | |||
| Picture ID | Yes | Yes | n/a |
| Ringer ID | Yes | Yes | n/a |
| Voice Dialing | Yes | Yes | n/a |
| Customization | |||
| Custom Graphics | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | n/a |
| Real-Music Ringers | Yes | Yes | n/a |
| Data & Network | |||
| Data Tethering | - | Yes | n/a |
| External Antenna Jack | Yes | - | n/a |
| WAP / Web Browser | Yes | Yes | n/a |
| Input | |||
| Predictive Text Entry | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | Yes | Yes |
| Messaging | |||
| Email Client | - | - | n/a |
| EMS / Picture Messaging | - | Yes | n/a |
| Instant Messaging | Yes | - | n/a |
| MMS | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | n/a |
| Music | |||
| FM Radio | - | - | Yes |
| Headphone Jack (3.5mm) | - | - | Yes |
| Music Player | Yes | Yes | n/a |
| Stereo Speakers | - | Yes | - |
| Photo & Video | |||
| DLNA | - | - | Yes |
| TV Output | - | Yes | Yes |
| Productivity | |||
| Alarm | Yes | Yes | n/a |
| Calculator | Yes | Yes | n/a |
| Calendar | Yes | Yes | n/a |
| To-Do List | Yes | - | n/a |
| Voice Memo | Yes | Yes | n/a |
| Software | |||
| BREW | - | Yes | n/a |
| Games | Yes | Yes | n/a |
| Java (J2ME) | Yes | - | n/a |
| Voice | |||
| Speaker Phone | Yes | Yes | Yes |
| Samsung UpStage M620 | Samsung SCH-A990 | HTC Amaze 4G | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung UpStage M620 | Samsung SCH-A990 | HTC Amaze 4G |
