| Samsung Galaxy Mega 6.3 | Samsung Rex 90 |
| Manufacture | Samsung | Samsung |
| Model | Galaxy Mega 6.3 | Rex 90 |
| Form factor | Block | Block |
| Weight | 182 gram | 0.00 |
| Dimensions (HxWxD) | 167.6 x 88.8 x 8 | 113.00 x 61.90 x 11.84 |
| Operating System | Android | Other |
| Networks | 2G - 850/900 3G - 900/1800 | 2G - 850/900/1800/1900 |
| HSCSD |  | |
| GPRS |  | |
| EDGE | | |
| UMTS | | |
| HSDPA | | |
| HSPA+ | | |
| WiMAX | | |
| LTE (4G light) | | |
| WLAN / Wi-Fi | | |
| Wi-Fi Hotspot | | |
| Wi-Fi Direct | | |
| SMS | | |
| MMS | | |
| | |
| HDMI out | | |
| USB port | | |
| MHL | | |
| Bluetooth | | |
| Bluetooth version | 4.0 | 3.0 |
| DLNA | | |
| GPS | | |
| Glonass | | |
| ANT+ | | |
| IrDA | | |
| NFC | | |
| 3.5 mm audio connector | | |
| Camera | | |
| Camera resolution | 8 megapixel, autofocus, HDR | 3.2 megapixel |
| Image Stabilization | | |
| BSI sensor | | |
| Camera Flash/Light | | |
| Flash type | LED | NA |
| Video recording | | |
| Video capture resolution | 720p | NA |
| Second Camera | 1.9 megapixel | NA |
| Display size | 6.3 inches | 3.50 |
| Touchscreen | | |
| Colour display | | |
| Number of colours | 16777216 | NA |
| Display width | 720 | 320 |
| Display height | 1280 | 480 |
| PPI | 233.11 | 164.83 |
| Second Display | NA | NA |
| CPU | 1.7 GHz dual-core | NA |
| GPU | 1.4 HGz | NA |
| Memory | 1.5 GB. Expandable up to 32 GB with microSD card | 10 MB user memory. Expandable using microSD card |
| Micro SIM | | |
| Dual SIM | | |
| MP3 | | |
| Ringtones / Music file format | MP3, AAC, OGG, OGA, WAV, WMA, AMR, FLAC, | MP3, AAC, AAC+, eAAC+, MIDI, SP-Midi, AMR, WAV |
| Java | | |
| Games | Yes, downloadable | NA |
| FM Radio | | |
| Battery | 3200 mAh | 1000 mAh |
| Standby time (h) | NA | NA |
| Talktime (m) | NA | NA |
| Wireless Charging | | |
| Browser | Android HTML Webkit | Opera Mini. NetFront Access |
| Calendar | | |
| Voicedialing | | |
| IP Code | NA | NA |
| Predictive text | | |
| RSS reader | | |
| Voicememo | | |
| PC Synchronization | | |
| SyncML | | |
| Website | Website | Website |