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V21 5G vs Poco F3

Vivo V21 5G vs Xiaomi Poco F3

What V21 5G does better (11) and where Poco F3 wins (9) — every spec side by side.

Vivo · 2021V21 5G

7.1Score

11 advantages≈ $210

Xiaomi · 2021Poco F3

7.4Score

9 advantages≈ $230

Higher score

6.3Display7.9

4.8Performance5.6

8.7Camera6.7

3.1Battery4.2

7.1Features6.9

Dimensions

Size comparison

V21 5GPoco F3

	V21 5G	Poco F3	Difference
Height	159.7 mm	163.7 mm	−4 mm
Width	73.9 mm	76.4 mm	−2.5 mm
Thickness	7.3 mm	7.8 mm	−0.5 mm
Weight	176 g	196 g	−20 g

Drawn to the same scale from the official dimensions (front and side).

Why is V21 5G better than Poco F3?

Geekbench 6 (multi-core)6,516 vs 3,2062×
Optical stabilisationYes · Poco F3: No
Main camera64 MP vs 48 MP+33%
Selfie camera44 MP vs 20 MP2.2×
Memory card slotYes · Poco F3: No
4K selfie videoYes · Poco F3: No
Weight176 g vs 196 g+11%
Measured brightness761 nits vs 716 nits+6%
Pixel density409 ppi vs 395 ppi+4%
Charged in 30 min63% vs 58%+9%
Thickness7.3 mm vs 7.8 mm+7%

Why is Poco F3 better than V21 5G?

AnTuTu score336,699 vs 631,850+88%
Peak brightness500 nits vs 1,300 nits2.6×
Stereo speakersNo · V21 5G: Yes
Battery capacity4,000 mAh vs 4,520 mAh+13%
Refresh rate90 Hz vs 120 Hz+33%
CPU frequency2.4 GHz vs 3.2 GHz+33%
Screen size6.4″ vs 6.7″+4%
Wi-Fi standardWi-Fi 5 vs Wi-Fi 6+20%
Loudspeaker loudness-28.2 LUFS vs -24.5 LUFS+-13%

Specifications

Side by side

Only differences	Vivo V21 5G≈ $2107.1	Xiaomi Poco F3≈ $2307.4
Design
Weight	176 g	196 g
Thickness	7.3 mm	7.8 mm
Height	159.7 mm	163.7 mm
Width	73.9 mm	76.4 mm
Frame	Plastic	Plastic
Back	Plastic	Glass
Ingress protection	—	IP53
Water resistance (IPx)	—	IPx3
Glass protection	—	Corning Gorilla Glass 5
Colours	Dusk Blue, Sunset Dazzle, Arctic White	Arctic White, Night Black, Deep Ocean Blue, Moonlight Silver
Display
Screen size	6.4″	6.7″
Panel	AMOLED	AMOLED
OLED panel	Yes	Yes
Resolution (width)	1,080 px	1,080 px
Resolution (height)	2,400 px	2,400 px
Pixel density	409 ppi	395 ppi
Refresh rate	90 Hz	120 Hz
Peak brightness	500 nits	1,300 nits
Measured brightness	761 nits	716 nits
Screen-to-body ratio	84.8%	85.9%
HDR	Yes	Yes
Performance
Chipset	Mediatek Dimensity 800U	Qualcomm SM8250-AC Snapdragon 870 5G
Chip maker	MediaTek	Qualcomm
Process	7 nm	7 nm
CPU cores	8	8
CPU frequency	2.4 GHz	3.2 GHz
GPU	Mali-G57 MC3	Adreno 650
AnTuTu score	336,699	631,850
Geekbench 6 (multi-core)	6,516	3,206
3DMark Wild Life Extreme	—	1,213
Memory
RAM	8 GB	8 GB
Storage (max)	256 GB	256 GB
Storage (base)	128 GB	128 GB
Storage type	UFS 2.2	UFS 3.1
Memory card slot	Yes	No
Camera
Main camera	64 MP	48 MP
Main camera aperture	f/1.8	f/1.8
Main sensor size	1/1.72"	1/2.0"
Rear cameras	2	2
Optical stabilisation	Yes	No
Ultra-wide camera	Yes	Yes
Telephoto camera	No	No
Max video	4K	4K
4K video frame rate	30 fps	30 fps
Selfie camera	44 MP	20 MP
4K selfie video	Yes	No
Battery
Battery capacity	4,000 mAh	4,520 mAh
Battery type	—	Li-Po
Wired charging	33 W	33 W
Charged in 30 min	63%	58%
Wireless charging	No	No
Connectivity
5G	Yes	Yes
eSIM	No	No
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 5	Wi-Fi 6
Bluetooth	5.1	5.1
NFC	Yes	Yes
USB	USB Type-C 2.0	USB Type-C 2.0
USB version	2	2
Infrared port	—	Yes
Dual-band GPS	—	Yes
Satellite navigation	GLONASS, GALILEO, BDS	GLONASS, GALILEO, BDS, NavIC
Features
Stereo speakers	No	Yes
3.5 mm headphone jack	No	No
Loudspeaker loudness	-28.2 LUFS	-24.5 LUFS
Fingerprint sensor	Under display	Side
Sensors	Fingerprint (under display, optical), accelerometer, gyro, proximity, compass	Fingerprint (side-mounted), accelerometer, gyro, compass
SAR (head)	1.05 W/kg	0.6 W/kg
Software
OS at launch	Android 11	Android 11
Platform	Android	Android
Interface	Funtouch 11.1	HyperOS