Samsung Galaxy S21 Ultra 5G vs vivo iQOO Z11

Compare Samsung Galaxy S21 Ultra 5G vs vivo iQOO Z11 side by side: Exynos 2100 / Snapdragon 888 5G (5 nm) vs Qualcomm Snapdragon 7s Gen 4, 108MP vs 50MP…

Samsung

iQOO Z11

$450

9categories won

2 categories tied · 19 scored in total · add a third phone

Information Gain

Which one wins?

MxMob Algorithmic Verdict

Samsung Galaxy S21 Ultra 5G takes the overall win

Overall Pick

The Samsung Galaxy S21 Ultra 5G claims the overall win over the vivo iQOO Z11, delivering a stronger technical package across gaming and photography. For battery longevity and charging speed, the iQOO Z11 takes the lead, while the Galaxy S21 Ultra 5G is the clear choice for demanding 3D gaming and heavy multitasking. Choose the Galaxy S21 Ultra 5G if you want the highest performance ceiling, or opt for the iQOO Z11 if its lower retail price better fit your budget.

🔋 BatteryiQOO Z11

iQOO Z11 takes battery honors offering 9,020 mAh alongside 90W charging.

🎮 GamingGalaxy S21 Ultra 5G

Galaxy S21 Ultra 5G leads gaming and raw performance powered by the Exynos 2100 / Snapdragon 888 5G (5 nm) and 12GB RAM.

📸 CameraGalaxy S21 Ultra 5G

Galaxy S21 Ultra 5G wins photography with 108MP main imaging and 10x dedicated optical zoom.

🏷️ ValueiQOO Z11

iQOO Z11 wins on budget and value at $450 compared to $1199.

Category verdicts are computed algorithmically from verified technical specifications and hardware benchmarks. Rows where neither figure is objectively better — screen size preference, operating system choice, aesthetic build materials — are displayed for direct reference without scoring bias.

Galaxy S21 Ultra 5G vs iQOO Z11: specifications compared

Display

Display comparison between the Samsung Galaxy S21 Ultra 5G, vivo iQOO Z11
Specification	Galaxy S21 Ultra 5G	iQOO Z11
Screen size	6.8"	6.83"
Resolution	1440 x 3200Winner	1260 x 2800
Pixel density	516 ppiWinner	450 ppi
Refresh rate	120 Hz	144 HzWinner
Peak brightness	1500 nits	5000 nitsWinner

Performance

Performance comparison between the Samsung Galaxy S21 Ultra 5G, vivo iQOO Z11
Specification	Galaxy S21 Ultra 5G	iQOO Z11
Chipset	Exynos 2100 / Snapdragon 888 5G (5 nm)	Qualcomm Snapdragon 7s Gen 4
Process node	5 nm	4 nmWinner
AnTuTu score	870,000	—
Geekbench multi	3800Winner	3091
Maximum RAM	12 GB	12 GB
Maximum storage	128GB	256GBWinner

Camera

Camera comparison between the Samsung Galaxy S21 Ultra 5G, vivo iQOO Z11
Specification	Galaxy S21 Ultra 5G	iQOO Z11
Main sensor	108 MPWinner	50 MP
Rear cameras	4Winner	2
Optical zoom	10x	—
Ultrawide	12 MPWinner	8 MP
Selfie camera	40 MPWinner	32 MP
Max video	8K at 24fps / 4K at 60fps all cameras	4K@30fps

Battery and charging

Battery and charging comparison between the Samsung Galaxy S21 Ultra 5G, vivo iQOO Z11
Specification	Galaxy S21 Ultra 5G	iQOO Z11
Capacity	5,000 mAh	9,020 mAhWinner
Wired charging	25 W	90 WWinner
Wireless charging	15 W	No

Design

Design comparison between the Samsung Galaxy S21 Ultra 5G, vivo iQOO Z11
Specification	Galaxy S21 Ultra 5G	iQOO Z11
Weight	227 g	213 gWinner
Thickness	8.9 mm	8.3 mmWinner
Water resistance	IP68	IP68/IP69
Build	Aluminum frame, Gorilla Glass Victus front and back	Glass front, plastic frame, plastic back

Software and support

Software and support comparison between the Samsung Galaxy S21 Ultra 5G, vivo iQOO Z11
Specification	Galaxy S21 Ultra 5G	iQOO Z11
Operating system	Android 11	Android 16
OS updates	4 yearsWinner	3 years
Security updates	5 years	5 years

Connectivity and value

Connectivity and value comparison between the Samsung Galaxy S21 Ultra 5G, vivo iQOO Z11
Specification	Galaxy S21 Ultra 5G	iQOO Z11
5G	Yes	Yes
Wi-Fi	Wi-Fi 6E (802.11ax)	802.11 a/b/g/n/ac/6
Storage expansion	None	None
3.5mm jack	No	No
Launch price	$1,199	$450Winner