Lenovo K9 vs Lenovo Vibe X3
| Type | Touch | Touch | Touch | Touch |
| Dimensions | 153.80 x 72.90 x 7.95 mm | 154.00 x 76.50 x 9.30 mm | 141.90 x 70.30 x 9.30 mm | 146.20 x 70.86 x 9.80 mm |
| Weight | 155.00 g | 176.00 g | 145.00 g | 160.00 g |
| Display size | 5.70" | 5.50" | 5.00" | 5.45" |
| Display | Color / IPS TFT 16M colors 720 x 1440 px (5.70") 282 ppi | Color / IPS TFT 16M colors 1080 x 1920 px (5.50") 401 ppi | Color / IPS TFT 16M colors 1080 x 1920 px (5.00") 441 ppi | Color / IPS TFT 16M colors 720 x 1440 px (5.45") 295 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
| |||
| Additional display | ||||
| Protection of the secondary display | ||||
| Talk time (max.) | 2G: 1860 min. (31.0 h) 3G: 1560 min. (26.0 h) | 2G: 2880 min. (48.0 h) | ||
| Stand-by (max.) | 4G: 618 h. (25.8 days) | 2G: 312 h. (13.0 days) | ||
| Standard battery | Li-Ion 3000 mAhBuy powerbank
| Li-Po 3500 mAhBuy powerbank
| Li-Po 4000 mAhBuy powerbank
| Li-Ion 4000 mAhBuy powerbank
|
| Quick battery charging | Quick Charge | Quick Charge 2.0 | ||
| Wireless battery charging | ||||
| Internal memory | 32 GB | 32 GB, 64 GB | 16 GB, 32 GB | 16 GB |
| RAM memory | 3 GB | 3 GB | 2 GB, 3 GB | 3 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 256 GBBuy memory card | microSD, microSDHC, microSDXC up to 128 GBBuy memory card | microSD, microSDHC, microSDXC up to 128 GBBuy memory card | microSD, microSDHC, microSDXC up to 256 GBBuy memory card |
| Operating system | Android 8.1 Oreo | Android 5.1.1 Lollipop | Android 6.0 Marshmallow | Android 8.1 Oreo |
| Interface | - | - | - | ZUI 3.9 Lite |
| Processor | MediaTek Helio P22 MT6762 | Qualcomm Snapdragon 808 8992 | Qualcomm Snapdragon 430 8937 | MediaTek MT6739 |
| Processor clock | 2000 MHz | 1800 MHz | 1400 MHz | 1500 MHz |
| GPU | PowerVR GE8320 @650 MHz | Adreno 418 @600 MHz | Adreno 505 | PowerVR GE8100 @570 MHz |
| Touchscreen | ||||
| DualSIM | ||||
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | dual standby | dual standby | dual standby | dual standby |
| Hybrid DualSIM | nanoSIM, microSD | |||
| Announced | 4Q 2018 | 4Q 2015 | 4Q 2016 | 2Q 2018 |
| Other names | - | X3c70; X3c50; X3 Lemon | K33a42 | - |
| GSM frequencies | 850 900 1800 1900 | 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 850 900 1900 2100 | 850 900 1900 2100 | 850 900 1900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 900, 850, 800 TDD LTE: 2600, 2500, 2300 | FDD LTE: 2600, 2100, 1800, 900, 850, 800 TDD LTE: 2600, 2500, 2300 | FDD LTE: 2600, 2100, 1800, 900, 850, 800 TDD LTE: 2600, 2500, 2300 | FDD LTE: 2600, 2100, 1800, 900, 850, 800 TDD LTE: 2600, 2500, 2300, 2100, 1900 |
| CDMA | 850 | |||
| Standard TD-SCDMA | 1900 2000 | 1900 2000 | ||
| UMA |



