Compare Phones
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| Phone | HTC EVO 4G | Motorola Backflip | Samsung Galaxy S II / SGH-i777 | Samsung SGH-A157 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4.3" diag. 5 : 3 |
3.1" diag. 5 : 3 |
4.3" diag. 5 : 3 |
1.8" diag. 4 : 3 |
| Display Resolution & Type |
480 x 800 pixels (~217 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~186 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~217 ppi) AMOLED |
128 x 160 pixels (~116 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | 60 Hz | 60 Hz | ? |
| Battery | 1,500 mAh | 1,400 mAh | 1,650 mAh | 800 mAh |
| Processor | 1 GHz Qualcomm Snapdragon S1 QSD8650 | 528 MHz Qualcomm MSM7201a | 1.2 GHz Samsung Exynos dual-core | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | 16 GB | 256 MB |
| Main Camera | 8 megapixel | 5 megapixel | 8 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | CIF (352 x 288) | 1080p HD | - |
| Front Camera | Yes | - | 2 megapixel | - |
| Weight |
6 oz (170g) |
4.7 oz (133g) |
4.3 oz (122g) |
2.99 oz (85g) |
| Dimensions |
4.8" x 2.6" x 0.5" (122 x 66 x 12.7 mm) |
4.25" x 2.09" x 0.6" (108 x 53 x 15.3 mm) |
4.96" x 2.6" x 0.35" (126 x 66 x 8.9 mm) |
3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm) |
| Form Factor | Slab | Clamshell | Slab | Clamshell |
| Platform / OS | Android | Android | Android | (proprietary) |
| Network Bands |
4G WiMAX: 41 CDMA: 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | WiMAX | HSPA 7.2 | HSPA+ 21 | ? |
| Features | ||||
| GPS / Location | n/a | n/a | n/a | Yes |
| Accessibility | ||||
| Adjustable Text Size | n/a | n/a | n/a | Yes |
| Hearing Aid Compatible | Yes |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
Yes M4 (very compatible) |
| Multiple Languages | n/a | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Ringer Profiles | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | - |
| Mobile Hotspot | n/a | n/a | n/a | - |
| NFC | - | - | Yes | - |
| USB | Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi |
Yes 802.11 b,g |
Yes 802.11 b,g |
Yes 4 (802.11 a,b,g,n) |
- |
| Contacts | ||||
| Picture ID | n/a | n/a | n/a | Yes |
| Ringer ID | n/a | n/a | n/a | Yes |
| Voice Dialing | n/a | n/a | n/a | - |
| Customization | ||||
| Custom Graphics | n/a | n/a | n/a | Yes |
| Custom Ringtones | n/a | n/a | n/a | Yes |
| Real-Music Ringers | n/a | n/a | n/a | Yes |
| Data & Network | ||||
| Data Tethering | n/a | n/a | n/a | - |
| WAP / Web Browser | n/a | n/a | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | - |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | - |
| Messaging | ||||
| Email Client | n/a | n/a | n/a | - |
| Instant Messaging | n/a | n/a | n/a | - |
| MMS | n/a | n/a | n/a | Yes |
| Text Messaging Templates | n/a | n/a | n/a | Yes |
| Music | ||||
| FM Radio | Yes | - | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | Yes | - |
| Music Player | n/a | n/a | n/a | - |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| TV Output | Yes | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | n/a | n/a | Yes |
| Calculator | n/a | n/a | n/a | Yes |
| Calendar | n/a | n/a | n/a | Yes |
| To-Do List | n/a | n/a | n/a | Yes |
| Voice Memo | n/a | n/a | n/a | Yes |
| Software | ||||
| Games | n/a | n/a | n/a | - |
| Voice | ||||
| Speaker Phone | Yes | Yes | Yes | Yes |
| HTC EVO 4G | Motorola Backflip | Samsung Galaxy S II / SGH-i777 | Samsung SGH-A157 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | HTC EVO 4G | Motorola Backflip | Samsung Galaxy S II / SGH-i777 | Samsung SGH-A157 |
