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| Phone | Samsung SGH-X640 | Samsung SCH-A990 | ZTE Grand X | Samsung SGH-R225 / SGH-R225M | Samsung Galaxy S 4 mini (GSM) |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? |
5" diag. 16 : 9 |
? |
4.3" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
540 x 960 pixels (~220 ppi) LCD (TFT/TFD) |
128 x 64 pixels |
540 x 960 pixels (~256 ppi) AMOLED |
| Display Refresh | ? | ? | 60 Hz | ? | 60 Hz |
| Battery | 800 mAh | 1,000 mAh | 2,300 mAh | ? | 1,900 mAh |
| Processor | ? | ? | 1.2 GHz Qualcomm Snapdragon 200 MSM8210 | ? | 1.7 GHz Qualcomm Snapdragon MSM8930 Pro (MSM8930AB) |
| RAM | ? | ? | 1 GB | ? | 1.5 GB |
| Storage | ? raw hardware | ? raw hardware | 4 GB | ? raw hardware | 16 GB |
| Main Camera | Yes | 3 megapixel | 5 megapixel | - | 8 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | ? | 720p HD | - | 1080p HD |
| Front Camera | - | - | 1 megapixel | - | 2 megapixel |
| Weight |
3 oz (85g) |
4.4 oz (125g) |
6.06 oz (172g) |
3.35 oz (95g) |
3.77 oz (107g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
5.7" x 2.87" x 0.37" (145 x 73 x 9.4 mm) |
4.33" x 1.81" x 0.93" (110 x 46 x 23.6 mm) |
4.9" x 2.41" x 0.35" (124 x 61 x 8.9 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1900 |
4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | EVDO r0 | HSPA+ 21 | - | LTE (Cat 3) |
| Features | |||||
| Flashlight | - | Yes | - | - | - |
| GPS / Location | - | Yes | n/a | - | n/a |
| Accessibility | |||||
| Adjustable Text Size | - | - | n/a | - | n/a |
| Hearing Aid Compatible | - |
Yes M3 (mostly compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | Yes | 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 |
| NFC | - | - | - | - | Yes |
| USB | - | Yes |
Yes Micro-USB |
- |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
- |
Yes 4 (802.11 a,b,g,n) |
| Contacts | |||||
| Picture ID | Yes | Yes | n/a | - | n/a |
| Ringer ID | Yes | Yes | n/a | Yes | n/a |
| Voice Dialing | - | Yes | n/a | - | n/a |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | Yes | n/a |
| Custom Ringtones | Yes | Yes | n/a | Yes | n/a |
| Real-Music Ringers | - | Yes | n/a | - | n/a |
| Data & Network | |||||
| Data Tethering | - | Yes | n/a | Yes | n/a |
| WAP / Web Browser | Yes | Yes | n/a | - | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | - | Yes |
| Touch Screen | - | - |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | - | Yes |
| Messaging | |||||
| Email Client | - | - | n/a | - | n/a |
| EMS / Picture Messaging | Yes | Yes | n/a | - | n/a |
| Instant Messaging | - | - | n/a | - | n/a |
| MMS | Yes | Yes | n/a | Yes | n/a |
| Text Messaging Templates | Yes | Yes | n/a | Yes | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | Yes | - | Yes |
| Music Player | - | Yes | n/a | - | n/a |
| Stereo Speakers | - | Yes | - | - | - |
| Photo & Video | |||||
| DLNA | - | - | - | - | Yes |
| Miracast | - | - | - | - | Yes |
| TV Output | - | Yes | - | - | - |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | Yes | n/a |
| Calculator | Yes | Yes | n/a | Yes | n/a |
| Calendar | Yes | Yes | n/a | Yes | n/a |
| To-Do List | Yes | - | n/a | - | n/a |
| Voice Memo | Yes | Yes | n/a | - | n/a |
| Software | |||||
| BREW | - | Yes | n/a | - | n/a |
| Games | Yes | Yes | n/a | Yes | n/a |
| Java (J2ME) | Yes | - | n/a | - | n/a |
| Voice | |||||
| HD Voice | - | - | Yes | - | Yes |
| Headset Jack (2.5 mm) | Yes | - | n/a | Yes | n/a |
| Speaker Phone | Yes | Yes | Yes | - | Yes |
| Samsung SGH-X640 | Samsung SCH-A990 | ZTE Grand X | Samsung SGH-R225 / SGH-R225M | Samsung Galaxy S 4 mini (GSM) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung SCH-A990 | ZTE Grand X | Samsung SGH-R225 / SGH-R225M | Samsung Galaxy S 4 mini (GSM) |
