Redmi K40 Gaming vs iQOO Z8x
| Type | Touch | Touch |
| Waterproofness & dust-resistance | IP53 | |
| Dimensions | 161.94 x 76.93 x 9.30 mm | 164.63 x 75.80 x 9.10 mm |
| Weight | 205.00 g | 199.60 g |
| Display size | 6.67" | 6.64" |
| Display | Color / OLED 1,07G colors 120 Hz 1080 x 2400 px (6.67") 395 ppi | Color / IPS TFT 16 colors 120 Hz 1080 x 2388 px (6.64") 388 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
| |
| Additional display | ||
| Protection of the secondary display | ||
| Talk time (max.) | 4G: 1404 min. (23.4 h) | |
| Stand-by (max.) | 4G: 727 h. (30.3 days) | |
| Standard battery | Li-Po 5065 mAhBuy powerbank
| Li-Po 6000 mAhBuy powerbank
|
| Quick battery charging | Quick Charge 3+ | |
| Wireless battery charging | ||
| Internal memory | 128 GB, 256 GB | 128 GB, 256 GB |
| RAM memory | 6 GB, 8 GB, 12 GB | 8 GB, 12 GB |
| Memory cards | ||
| Operating system | Android 11 | Android 13 |
| Interface | MIUI 12.5 | OriginOS 3.0 |
| Processor | MediaTek Dimensity 1200 MT6893 | Qualcomm Snapdragon 6 Gen 1 SM6450 |
| Processor clock | 3000 MHz | 2200 MHz |
| GPU | ARM Mali-G77 MC9 | Adreno |
| Touchscreen | ||
| DualSIM | ||
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | dual standby | dual standby |
| Hybrid DualSIM | ||
| Announced | 2Q 2021 | 3Q 2023 |
| Other names | Xiaomi Redmi K40 Gaming | Vivo iQOO Z8x; V2312A |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 |
| UMTS | 850 900 1700 1900 2100 | 850 900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850 TDD LTE: 3500, 2600, 2500, 2300, 2100, 1900 | FDD LTE: 2100, 1800, 900, 850, 700 TDD LTE: 2600, 2500, 2300, 2100, 1900 |
| Standard 5G | FDD 5G: 2100, 1800, 700 TDD 5G: 3700, 3500, 2500 | FDD 5G: 2100, 900, 850, 700 TDD 5G: 3700, 3500, 2600, 2500, 2300 |
| CDMA | CDMA2000 1xEV-DO | |
| Standard TD-SCDMA | ||
| UMA |

