Side-by-side technical data

Xiaomi Redmi K70 Ultra vs Xiaomi Redmi 8

Comparison between Xiaomi Redmi K70 Ultra and Xiaomi Redmi 8: camera, battery, fast charging, display, performance and colors, side by side. More phones from Xiaomi.

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Redmi K70 Ultra

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Redmi 8

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The verdict

Your pick: Xiaomi Redmi K70 Ultra, ahead on Design & display, Performance & hardware, Camera, Connectivity and Battery & charging.

Category
Category	Redmi K70 Ultra	Redmi 8
Design & display	8.4	4.5
Performance & hardware	8.7	2.5
Camera	7.7	3.6
Connectivity	7.9	3.9
Battery & charging	6.8	5.4

Which one is for you?

Xiaomi Redmi K70 Ultra, if you care about…

Battery Capacity: 5,500 mAh; against 5,000 mAh
RAM Capacity: 24 GB; against 4 GB
Wi-Fi Standards: Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E, Wi-Fi 7 (802.11be), Wi-Fi 802.11a/b/g; against Wi-Fi 802.11 b/g/n, Wi-Fi 4 (802.11n)
Storage Type: UFS 4.0; against eMMC 5.1

Xiaomi Redmi 8, if you care about…

Weight: 188 g; against 211 g

Specification comparison

Show differences only

Performance

Specification	Redmi K70 Ultra	Redmi 8
Processor Model	MediaTek Dimensity 9300+	Qualcomm Snapdragon 439
Processor Process Size	4 nm Best value	12 nm
Graphics GPU	Immortalis-G720 MC12	Qualcomm Adreno 505
Storage Type	UFS 4.0 Best value	eMMC 5.1
Maximum CPU Clock	3.4 GHz Best value	1.95 GHz
Maximum Storage Capacity	1 TB Best value	64 GB
AnTuTu Score	2,345,810	89,903
Geekbench 6 Single-Core	2,302 Best value	492
Geekbench 6 Multi-Core	7,547 Best value	1,701
CPU Description	Octa-core CPU with Cortex-X4 and Cortex-A720 cores.	Octa-core CPU with 4 Cortex-A53 cores at 1.95 GHz and 4 Cortex-A53 cores at 1.45 GHz.
Processor Type	Octa-Core	Octa-Core
64-Bit Processor	Yes	Yes
RAM Capacity	24 GB Best value	4 GB
RAM Type	LPDDR5X Best value	DDR3
AnTuTu version	v11	—

Design

Specification	Redmi K70 Ultra	Redmi 8
Body Colors	Black, White, Purple, Green, Orange	Black, Red, Blue
Body Thickness	8.4 mm Best value	9.4 mm
Body Width	75.1 mm	75.4 mm
Body Height	160.4 mm	156.5 mm
Weight	211 g	188 g Best value
Usable Surface	89.1 % Best value	81.8 %
Body Materials	Glass, Aluminium Alloy, Metal Best value	Glass, Plastic
Resistance Features	IP68	Water Resistant
Waterproof Depth	2 m	—

Battery

Specification	Redmi K70 Ultra	Redmi 8
Battery Capacity	5,500 mAh Best value	5,000 mAh
Battery Type	Li-Polymer	Li-Polymer
Fast Charge Power	120 W Best value	18 W
Battery Features	Fast Charging, Non-Removable, Battery Level Indicator, Charger Included, Rechargeable	Fast Charging, Battery Level Indicator, Rechargeable

Display

Specification	Redmi K70 Ultra	Redmi 8
Display Aspect Ratio	20:9	19:9
Display Technology	AMOLED Best value	IPS LCD
Peak Display Brightness	4,000 nits Best value	400 nits
Display Diagonal	6.67″ Best value	6.22″
Display Horizontal Resolution	1,220 px Best value	720 px
Display Vertical Resolution	2,712 px Best value	1,520 px
Display Pixel Density	446 ppi Best value	270 ppi
Display Refresh Rate	144 Hz Best value	60 Hz
Touch Sampling Rate	480 Hz	—
Display Contrast Ratio	5,000,000 :1	—
Display Features	Hole-Punch Notch, HDR10, HDR10+, Dolby Vision, DC Dimming, Capacitive Touch, Multi-Touch, Frameless, Scratch Resistant, 2160Hz PWM	Gorilla Glass 5, IPS LCD, Touchscreen

Sensors

Specification	Redmi K70 Ultra	Redmi 8
Fingerprint Sensor Placement	Under Display	Rear

Sensor

Specification	Redmi K70 Ultra	Redmi 8
Sensor Features	Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass, Light Sensor, Cooling System	Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass

Software

Specification	Redmi K70 Ultra	Redmi 8
Operating System	Android 14	Android 9
OS Family	Android	Android
OS Version	14 Best value	9

Connectivity

Specification	Redmi K70 Ultra	Redmi 8
SIM Configurations	Dual Nano-SIM, Dual SIM Dual Standby	Dual Nano-SIM
Cellular Bands	2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 2G CDMA BC0, 3G UMTS 800, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1700 AWS, 3G UMTS 2100, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B18, 4G LTE B19, 4G LTE B26, 4G LTE B28A, 4G LTE B28B, 4G LTE B34, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41, 4G LTE B42, 4G LTE B48, 4G LTE B66, 5G NR n1, 5G NR n3, 5G NR n5, 5G NR n7, 5G NR n8, 5G NR n28a, 5G NR n28b, 5G NR n38, 5G NR n40, 5G NR n41, 5G NR n48, 5G NR n77, 5G NR n78	2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1700 AWS, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, 4G LTE B38, 4G LTE B40
Cellular Technologies	GSM, CDMA, HSPA, CDMA2000, LTE, 5G Best value	GSM, HSPA, UMTS, LTE, 4G
Wi-Fi Standards	Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E, Wi-Fi 7 (802.11be), Wi-Fi 802.11a/b/g Best value	Wi-Fi 802.11 b/g/n, Wi-Fi 4 (802.11n)
Wi-Fi Features	Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, MIMO	Wi-Fi Direct, Wi-Fi 802.11 b/g/n
Bluetooth Version	Bluetooth 5.4 Best value	Bluetooth 4.2
Bluetooth Profiles	A2DP, LE	A2DP, LE
Navigation Systems	GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC Best value	GPS, GLONASS, Galileo, BeiDou
Connectivity Features	Infrared, NFC, USB Type-C, USB Charging, USB Mass Storage, USB OTG, Computer Sync, OTA Sync, Tethering, VoLTE	3.5 mm Audio Jack, Infrared, FM Radio, USB Type-C, USB OTG, USB Charging
USB Version	USB Type-C	USB 2.0
SAR American Head	—	0.34 W/kg
SAR American Body	—	1 W/kg
SAR (EU) head	—	0.23 W/kg
SAR (EU) body	—	1.48 W/kg
Max. download speed	10,000 Mbps Best value	150 Mbps
Max. upload speed	7,000 Mbps Best value	75 Mbps

Audio

Specification	Redmi K70 Ultra	Redmi 8
Microphone Count	—	2
Audio Features	Stereo Speakers, A2DP, LE, LHDC 5, Hi-Res Audio, Hi-Res Wireless Audio, Dolby Atmos Best value	A2DP, LE, Loudspeaker

Technical

Specification	Redmi K70 Ultra	Redmi 8
Model numbers	2407FRK8EC	M1908C3IC, MZB8255IN, M1908C3IG, M1908C3IH