Gigabyte GSmart Roma R2 vs Gigabyte GSmart Simba SX1
| Type | Touch | Touch | 
| Dimensions | 125.00 x 63.20 x 9.30 mm | 144.00 x 73.00 x 9.50 mm | 
| Weight | 125.00 g | 165.00 g | 
| Display size | 4.00" | 5.00" | 
| Display | Color / IPS TFT 16M colors 480 x 800 px (4.00") 233 ppi | Color / IPS TFT 16M colors 720 x 1280 px (5.00") 294 ppi | 
| Display protection | ||
| Additional display | ||
| Protection of the secondary display | ||
| Talk time (max.) | 2G: 210 min. (3.5 h) | 2G: 150 min. (2.5 h) | 
| Stand-by (max.) | 3G: 220 h. (9.2 days) | 3G: 150 h. (6.3 days) | 
| Standard battery | Li-Ion 1400 mAhBuy powerbank | Li-Ion 1900 mAhBuy powerbank | 
| Quick battery charging | ||
| Wireless battery charging | ||
| Internal memory | 4 GB | 4 GB | 
| RAM memory | 1 GB | 1 GB | 
| Memory cards | microSD, microSDHC up to 32 GBBuy memory card | microSD, microSDHC up to 32 GBBuy memory card | 
| Operating system | Android 4.2 Jelly Bean | Android 4.2 Jelly Bean | 
| Processor | ARM Cortex A7 | - | 
| Processor clock | 1300 MHz | 1400 MHz | 
| GPU | - | - | 
| Touchscreen | ||
| DualSIM | ||
| Hybrid DualSIM | ||
| Other names | - | - | 
| GSM frequencies | 900 1800 | 900 1800 | 
| UMTS | 900 2100 | 900 2100 | 
| LTE standard | ||
| CDMA | ||
| Standard TD-SCDMA | ||
| UMA | 
 
            
