HMD XR21 vs Xiaomi Mi Mix (128GB)

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Side by side comparison between HMD XR21 vs Xiaomi Mi Mix phones, differences, pros, cons and full specifications. What's the better?

2/2/2026 5:48 PM, updated: 2/2/2026 6:11 PM

Compare Xiaomi Mi Mix X HMD XR21 21Points

Specifications Compare Models Pictures

6.49"
IPS

1080x2400

64
MP

16mp

6GB
RAM

Octa-core

4800
mAh

(Non removable)

05Points Xiaomi Mi Mix (128GB) Compare HMD XR21 X

Specifications Compare Models Pictures

6.4"
IPS

1080x2040

16
MP

5mp

4GB
RAM

Quad-core

4400
mAh

(Non removable)

What's the better phone? HMD XR21

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!

21 Advantages HMD XR21	vs	5 Advantages Xiaomi Mi Mix (128GB)
+2.2GHz 64bit Octa-core (6nm)34% More powerful processor, you can open your applications faster	vs	2.35GHz 64bit Quad-core
+6GB LPDDR4X50% More RAM memory. Typically more responsive and better for multitasking.	vs	4GB LPDDR4
+1080x2400 pixels18% Higher resolution screen	vs	1080x2040 pixels
+406 PPI12% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	361 PPI
+6.49"1% Larger screen	vs	6.4"
+(dual camera) 64MP + 8MP4 times Higher resolution main camera	vs	(back) 16MP
+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness	vs	Not supported
+f/1.8 (aperture)11% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.0 (aperture)
+(front) 16MP2 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 5MP
+Android 14Advantage Android 14 is newer and safer	vs	Android 7.0 Nougat
+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster	vs	4G LTE-A
+(5G SA/NSA) 2000 Mbps6 times Faster for surfing the internet and download files	vs	(4G LTE-A) 300 Mbps
+Face unlock 2DAdvantage Sensors help you use the device	vs	Not supported
+4800 mAh9% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	4400 mAh
+2 slots (Dual-SIM) + e-SIM (Eletronic)Advantage You can have more mobile carriers/operators on the same device.	vs	2 slots (Dual-SIM)
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
+802.11 a/b/g/n/ac/ax [wifi6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster	vs	802.11 a/b/g/n/ac [wifi5]
+5.1 + A2DP/LEAdvantage Bluetooth 5.1 + A2DP/LE is newer and faster	vs	4.2 + A2DP
+Gorilla Glass VictusAdvantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
+IP68/IP69K certified, MIL-STD-810G military certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
128GB (101GB available)	vs	+128GB (118GB available)17% More internal storage for applications and files
231 grams (8.09 ounces)	vs	+209 grams (7.32 ounces)11% Lighter
10.45 millimeters (0.41 inches)	vs	+7.9 millimeters (0.31 inches)32% Thinner
Plastic body, glass front	vs	+Ceramic body, glass frontAdvantage More resistant material
Full HD (1920x1080)	vs	+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera

26 Common items in both devices

TFT IPS LCD

16 million

Dual-LED flash

Only digital zoom

PDAF: phase detection autofocus

HDR photo on both cameras

(front) Full HD (1920x1080)

+19 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
	HMD XR21	Xiaomi Mi Mix (128GB)
Change model		Choose the model
Model	HMD XR21	Xiaomi Mi Mix (128GB)
Other model names	HMD XR21 TA-1592	Xiaomi Mix 2016080 4GB RAM + 128GB, Xiaomi Lithium
Country or region available	(Global, International)	China, Vietnam
Brand	HMD	Xiaomi
Release date	5/1/2024, Announced: 5/14/2024	11/4/2016
Depth	10.45 millimeters (0.41 inches)	7.9 millimeters (0.31 inches)
Size (width x height)	78.58 x 168 millimeters (3.09 x 6.61 in)	81.9 x 158.8 millimeters (3.22 x 6.25 in)
Weight	231 grams (8.09 ounces)	209 grams (7.32 ounces)
Build, materials	Plastic body, glass front	Ceramic body, glass front
Protection against water and others	IP68/IP69K certified: water-resistant up to 1.5 meters for 30min, dust-resistant, plus high-pressure and steam-washable. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.	Not supported
📲 Display
	HMD XR21	Xiaomi Mi Mix (128GB)
Display type	TFT IPS LCD	TFT IPS LCD
Screen size	6.49" inches	6.4" inches
Screen-to-body ratio	~77% (screen-to-body ratio)	~84% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	1080x2040 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	406 PPI	361 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass Victus	Not supported
Refresh rate	120Hz	feature not registered
Display features	450nits[typ], 550nits[peak]	feature not registered
🤖 Operating System
	HMD XR21	Xiaomi Mi Mix (128GB)
System version	Android 13	Android 6.0.1 Marshmallow
Firmware update	Android 14	Android 7.0 Nougat
User Interface	feature not registered	feature not registered
⚙️ Processor
	HMD XR21	Xiaomi Mi Mix (128GB)
Chipset	64bit: Qualcomm Snapdragon 695 (SM6375) (6nm)	64bit: Qualcomm Snapdragon 821 MSM8996AC Pro (14nm)
CPU	Octa-core, 2 processors: 2x 2.2GHz Kryo 660 Gold (Dual-core) 6x 1.7GHz Kryo 660 Silver (Hexa-core)	Quad-core, 2 processors: 2x 2.35GHz Kryo (Dual-core) 2x 1.6GHz Kryo (Dual-core)
GPU graphical controller	Qualcomm Adreno 619 (840MHz)	Qualcomm Adreno 530 650Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	HMD XR21	Xiaomi Mi Mix (128GB)
RAM memory	6GB LPDDR4X	4GB LPDDR4
Internal storage	128GB (101GB available) UFS 2.2	128GB (118GB available)
External storage	Not supported	Not supported
📶 Mobile networks
	HMD XR21	Xiaomi Mi Mix (128GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	2000/1024 Mbps	300/50 Mbps
Network technology	2G, 3G, 4G, 5G	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	GSM 850/900/1800/1900	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	CDMA2000 TD-SCDMA 1900/2000 UMTS 850/900/1900/2100
Primary 4G network	LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 32, 66, 71) TD-LTE (38, 39, 40, 41, 42, 43, 48) VoLTE	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)
Primary 5G network	SA/NSA (1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 48, 66, 71, 77, 78, 79)	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	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
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1700/1900/2100	Not supported
Secondary 4G network	LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 32, 66, 71) TD-LTE (38, 39, 40, 41, 42, 43, 48) VoLTE	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	GPRS, EDGE
📷 Camera
	HMD XR21	Xiaomi Mi Mix (128GB)
Back camera (main camera)	(dual camera) 64 megapixels 8MP ultrawide f/2.21/4"1.12µm	16 megapixels
Main camera resolution	10120x6328 pixels	4608x3456 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	Dual-LED flash
Focal aperture	f/1.8 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/2" inches	feature not registered
Pixel size	feature not registered	feature not registered
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	1080p@30fps	feature not registered
📸 Front camera
	HMD XR21	Xiaomi Mi Mix (128GB)
Front camera (secondary)	16 megapixels	5 megapixels
Front camera resolution	4608x3456 pixels	2592x1944 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	feature not registered	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	HMD XR21	Xiaomi Mi Mix (128GB)
Loudspeaker	Stereo sound with dual speakers	Supported
Active noise cancellation	2 microphones	2 microphones or more
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, eAAC+, FLAC
🔌 Connectivity
	HMD XR21	Xiaomi Mi Mix (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	USB Type-C (reversible)	Not supported
Bluetooth	5.1 + A2DP/LE	4.2 + A2DP
WiFi	802.11 a/b/g/n/ac/ax [wifi6] (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, GALILEO, BeiDou, NavIC	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	HMD XR21	Xiaomi Mi Mix (128GB)
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	HMD XR21	Xiaomi Mi Mix (128GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	4800 mAh	4400 mAh
Charger, watts	33W Wired fast charging Reverse charging by cable Quick Charge 3 USB Power Delivery 2.0	Wired charging
Inductive / wireless charging	Not supported	feature not registered
Talk time autonomy	48 hours (2 days)	feature not registered
Standby	feature not registered	256 hours (10.7 days)
➕ Other features
	HMD XR21	Xiaomi Mi Mix (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: Midnight Black	• 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
☢️ Radiation rate
	HMD XR21	Xiaomi Mi Mix (128GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered