Xiaomi Mi Mix (128GB) vs Xiaomi Poco X3 Pro (J20SI 128GB)

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Side by side comparison between Xiaomi Mi Mix vs Xiaomi Poco X3 Pro phones, differences, pros, cons and full specifications. What's the better?

6/26/2021 10:26 AM, updated: 2/24/2023 3:36 PM

Compare Xiaomi Poco X3 Pro X Xiaomi Mi Mix (128GB) 06Points

Specifications Compare Models Pictures

6.4"
IPS

1080x2040

16
MP

5mp

4GB
RAM

Quad-core

4400
mAh

(Non removable)

17Points Xiaomi Poco X3 Pro (J20SI 128GB) Compare Xiaomi Mi Mix X

Specifications Compare Models Pictures

6.67"
IPS

1080x2400

48
MP

20mp

6GB
RAM

Octa-core

5160
mAh

(Non removable)

What's the better phone? Xiaomi Poco X3 Pro (J20SI 128GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

6 Advantages Xiaomi Mi Mix (128GB)	vs	17 Advantages Xiaomi Poco X3 Pro (J20SI 128GB)
+128GB (118GB available)11% More internal storage for applications and files	vs	128GB (106GB available)
+209 grams (7.32 ounces)3% Lighter	vs	215 grams (7.53 ounces)
+7.9 millimeters (0.31 inches)19% Thinner	vs	9.4 millimeters (0.37 inches)
+Ceramic body, glass frontAdvantage More resistant material	vs	Plastic body, glass front
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
2.35GHz 64bit Quad-core	vs	+2.96GHz 64bit Octa-core (7nm)54% More powerful processor, you can open your applications faster
4GB LPDDR4	vs	+6GB LPDDR4X50% More RAM memory. Typically more responsive and better for multitasking.
Not supported	vs	+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards
1080x2040 pixels	vs	+1080x2400 pixels18% Higher resolution screen
361 PPI	vs	+395 PPI9% Crisper display of text, images and videos because it has more pixels per inch (ppi)
6.4"	vs	+6.67"4% Larger screen
(back) 16MP	vs	+(quad camera) 48MP + 8MP + 2MP + 2MP3 times Higher resolution main camera
f/2.0 (aperture)	vs	+f/1.8 (aperture)11% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 5MP	vs	+(front) 20MP3 times Higher resolution secondary camera to take pictures and selfies
Android 7.0 Nougat	vs	+Android 13Advantage Android 13 is newer and safer
(4G LTE-A) 300 Mbps	vs	+(4G LTE-A) 800 Mbps167% Faster for surfing the internet and download files
Not supported	vs	+Face unlock 2DAdvantage Sensors help you use the device
4400 mAh	vs	+5160 mAh17% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general
4.2 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
Not supported	vs	+Gorilla Glass 6Advantage Protection against scratches on the screen lets you carry your phone with your keys
Not supported	vs	+IP53 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

29 Common items in both devices

TFT IPS LCD

16 million

Dual-LED flash

Only digital zoom

PDAF: phase detection autofocus

EIS: Digital stabilization

HDR photo on both cameras

+22 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
Change model		Choose the model
Model	Xiaomi Mi Mix (128GB)	Poco X3 Pro (J20SI 128GB)
Other model names	Xiaomi Mix 2016080 4GB RAM + 128GB, Xiaomi Lithium	POCO X3 Pro M2102J20SI (128GB+6GB RAM)
Country or region available	China, Vietnam	India
Brand	Xiaomi	Xiaomi
Release date	11/4/2016	3/24/2021, Announced: 3/22/2021
Depth	7.9 millimeters (0.31 inches)	9.4 millimeters (0.37 inches)
Size (width x height)	81.9 x 158.8 millimeters (3.22 x 6.25 in)	76.8 x 165.3 millimeters (3.02 x 6.51 in)
Weight	209 grams (7.32 ounces)	215 grams (7.53 ounces)
Build, materials	Ceramic body, glass front	Plastic body, glass front
Protection against water and others	Not supported	IP53 certified: protection against dust and splashing
📲 Display
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
Display type	TFT IPS LCD	TFT IPS LCD
Screen size	6.4" inches	6.67" inches
Screen-to-body ratio	~84% (screen-to-body ratio)	~84.6% (screen-to-body ratio)
Display resolution	1080x2040 pixels	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	361 PPI	395 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 6
Refresh rate	feature not registered	120Hz
Display features	feature not registered	450nits[typ] HDR10
🤖 Operating System
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
System version	Android 6.0.1 Marshmallow	Android 11
Firmware update	Android 7.0 Nougat	Android 13
User Interface	feature not registered	MIUI 12.5 / 13 / 14
⚙️ Processor
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
Chipset	64bit: Qualcomm Snapdragon 821 MSM8996AC Pro (14nm)	64bit: Qualcomm Snapdragon 860 (SM8150-AC) (7nm)
CPU	Quad-core, 2 processors: 2x 2.35GHz Kryo (Dual-core) 2x 1.6GHz Kryo (Dual-core)	Octa-core, 3 processors: 1x 2.96GHz Kryo 485 Gold (Single-core) 3x 2.42GHz Kryo 485 Gold (Triple-core) 4x 1.78GHz Kryo 485 Silver (Quad-core)
GPU graphical controller	Qualcomm Adreno 530 650Mhz	Qualcomm Adreno 640 (250-672MHz)
Performance (benchmark)	feature not registered	AnTuTu: 483527 (v8) Geekbench: 2574 (v5.1) GFXBench: 38fps (ES 3.1 onscreen)
💽 Memory and storage
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
RAM memory	4GB LPDDR4	6GB LPDDR4X
Internal storage	128GB (118GB available)	128GB (106GB available) UFS 3.1
External storage	Not supported	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	300/50 Mbps	800/150 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	CDMA 800, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	CDMA2000 TD-SCDMA 1900/2000 UMTS 850/900/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat9 850/900/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,8) TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41)	LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41)
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
Back camera (main camera)	16 megapixels	(quad camera) 48 megapixels 8MP ultrawide f/2.2119°1.0µm 2MP macro f/2.4 2MP depth f/2.4
Main camera resolution	4608x3456 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	Dual-LED flash
Focal aperture	f/2.0 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	1/2" inches
Pixel size	feature not registered	0.8µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	1080p@960fps
📸 Front camera
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
Front camera (secondary)	5 megapixels	20 megapixels
Front camera resolution	2592x1944 pixels	5184x3840 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	feature not registered	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	1/3.4" inches
Pixel size	feature not registered	0.8µm pixel
🔉 Sound and multimedia
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
Loudspeaker	Supported	Stereo sound with dual speakers
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	USB Type-C (reversible)
Bluetooth	4.2 + A2DP	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Not supported
Infrared port	Not supported	Supported
🧭 Sensors
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
Sensors	Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4400 mAh	5160 mAh
Charger, watts	Wired charging	33W Wired fast charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	256 hours (10.7 days)	feature not registered
➕ Other features
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Black • MIUI 8.0/8.2 • 500nits display brightness • Slow-motion at 720p@120fps • 192Hz/24-bit audio • Quick Charge 3.0: 83% in 30min • Miracast	• Colors: Phantom Black, Frost Blue, Metal Bronze • Silicone Case included • Cooling up to 6 °C • LiquidCool 1.0 Plus
☢️ Radiation rate
	Xiaomi Mi Mix (128GB)	Xiaomi Poco X3 Pro (J20SI 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.99W/kg (head), 0.67W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.57W/kg (head), 0.9W/kg (body)