ZTE Optus X Start 4 vs Motorola Droid RAZR M
| Type | Touch | Touch |
| Dimensions | 137.35 x 67.60 x 10.70 mm | 122.50 x 60.90 x 8.30 mm |
| Weight | 144.50 g | 126.00 g |
| Display size | 5.00" | 4.30" |
| Display | Color / IPS TFT 16,7M colors 480 x 960 px (5.00") 215 ppi | Color / Super AMOLED 16M colors 540 x 960 px (4.30") 256 ppi |
| Display protection | ||
| Additional display | ||
| Protection of the secondary display | ||
| Talk time (max.) | 4G: 900 min. (15.0 h) | |
| Stand-by (max.) | 4G: 400 h. (16.7 days) | |
| Standard battery | Li-Ion 2000 mAhBuy powerbank
| Li-Ion 2000 mAhBuy powerbank
|
| Quick battery charging | ||
| Wireless battery charging | ||
| Internal memory | 32 GB | 8 GB |
| End-user memory | 24 GB | 4.5 GB |
| RAM memory | 2 GB | 1 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 512 GBBuy memory card | microSD, microSDHC up to 32 GBBuy memory card |
| Operating system | Android 13 Go | Android 4.0.4 Ice Cream Sandwich |
| Processor | Unisoc SC9863A | Qualcomm MSM8960 |
| Processor clock | 1600 MHz | 1500 MHz |
| GPU | IMG8322 @550 MHz | Adreno 225 |
| Touchscreen | ||
| SAR (10g) | 1,622 W/kg | |
| DualSIM | ||
| SIM cards standard | SingleSIM(nanoSIM) | |
| Other names | P503 | XT905; XT907 |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 2100 | 850 900 1900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 900, 850, 700 TDD LTE: 2300 | FDD LTE: 700 |
| Standard 5G | ||
| CDMA | 850 1900 CDMA2000 1xEV-DO | |
| Standard TD-SCDMA | ||
| UMA |

