HMD XR21 vs Bq Aquaris 3.5

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Side by side comparison between HMD XR21 vs Bq Aquaris 3.5 phones, differences, pros, cons and full specifications. What's the better?

2/2/2026 5:48 PM, updated: 5/4/2026 10:30 AM

Compare Bq Aquaris 3.5 X HMD XR21 33Points

Specifications Compare Models Pictures

6.49"
IPS

1080x2400

64
MP

16mp

6GB
RAM

Octa-core

4800
mAh

(Non removable)

03Points Bq Aquaris 3.5 Compare HMD XR21 X

Specifications Compare Models Pictures

3.5"
IPS

320x480

2
MP

0.3mp

1GB
RAM

Dual-core

1200
mAh

(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!

33 Advantages HMD XR21	vs	3 Advantages Bq Aquaris 3.5
+2.2GHz 64bit Octa-core (6nm)3 times More powerful processor, you can open your applications faster	vs	1GHz 32bit Dual-core
+6GB LPDDR4X5 times More RAM memory. Typically more responsive and better for multitasking.	vs	1GB
+128GB (101GB available)50 times More internal storage for applications and files	vs	4GB (2GB available)
+10.45 millimeters (0.41 inches)10% Thinner	vs	11.5 millimeters (0.45 inches)
+1080x2400 pixels16 times Higher resolution screen	vs	320x480 pixels
+406 PPI146% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	165 PPI
+6.49"85% Larger screen	vs	3.5"
+(dual camera) 64MP + 8MP37 times Higher resolution main camera	vs	(back) 2MP
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	Not supported
+PDAF: phase detection autofocusAdvantage Best autofocus type for taking pictures	vs	Not supported
+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness	vs	Not supported
+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	Not supported
+(front) 16MP51 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 0.3MP
+Full HD (1920x1080)6 times More image quality for recording videos with the primary camera	vs	VGA (640x480)
+(front) Full HD (1920x1080)6 times More image quality for recording videos with the secondary camera	vs	(front) VGA (640x480)
+Android 14Advantage Android 14 is newer and safer	vs	Android 4.2.2 Jelly Bean
+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster	vs	3G+ HSPA+
+(5G SA/NSA) 2000 Mbps94 times Faster for surfing the internet and download files	vs	(3G+ HSPA+) 21 Mbps
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+CompassAdvantage Sensors help you use the device	vs	Not supported
+Face unlock 2DAdvantage Sensors help you use the device	vs	Not supported
+Fingerprint sensor (side-mounted)Advantage Sensors help you use the device	vs	Not supported
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+4800 mAh3 times Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	1200 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) (dedicated slot)
+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos	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 b/g/n [wifi4]
+5.1 + A2DP/LEAdvantage Bluetooth 5.1 + A2DP/LE is newer and faster	vs	4.0 + A2DP
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0
+HTML, XHTML, HTML5Advantage Better sites viewing on the internet	vs	HTML, XHTML
+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
Not supported	vs	+Until 64GB microSD, microSDXCAdvantage More external storage for files using memory cards
231 grams (8.09 ounces)	vs	+110 grams (3.85 ounces)110% Lighter
LiPo: li-ion polymer (Non removable)	vs	+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily

15 Common items in both devices

TFT IPS LCD

16 million

Only digital zoom

Capacitive

Multitouch

Accelerometer

Ambient light sensor

+8 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	Bq Aquaris 3.5
Change model
Model	HMD XR21	Aquaris 3.5
Other model names	HMD XR21 TA-1592	BQ Aquaris 3.5, 03BQAQU04, 03BQAQU07, 03BQAQU10, 03BQAQU11
Country or region available	(Global, International)	(Europe), Spain
Brand	HMD	Bq
Release date	5/1/2024, Announced: 5/14/2024	9/9/2013
Depth	10.45 millimeters (0.41 inches)	11.5 millimeters (0.45 inches)
Size (width x height)	78.58 x 168 millimeters (3.09 x 6.61 in)	60 x 115 millimeters (2.36 x 4.53 in)
Weight	231 grams (8.09 ounces)	110 grams (3.85 ounces)
Build, materials	Plastic body, glass front	feature not registered
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	Bq Aquaris 3.5
Display type	TFT IPS LCD	TFT IPS LCD
Screen size	6.49" inches	3.5" inches
Screen-to-body ratio	~77% (screen-to-body ratio)	~52.9% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	320x480 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 5-points
Pixel density (dot pitch)	406 PPI	165 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	Bq Aquaris 3.5
System version	Android 13	Android 4.2.2 Jelly Bean
Firmware update	Android 14	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	HMD XR21	Bq Aquaris 3.5
Chipset	64bit: Qualcomm Snapdragon 695 (SM6375) (6nm)	32bit
CPU	Octa-core, 2 processors: 2x 2.2GHz Kryo 660 Gold (Dual-core) 6x 1.7GHz Kryo 660 Silver (Hexa-core)	Dual-core, 1 processor: 2x 1GHz ARM Cortex-A7 (Dual-core)
GPU graphical controller	Qualcomm Adreno 619 (840MHz)	ARM Mali-400
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	HMD XR21	Bq Aquaris 3.5
RAM memory	6GB LPDDR4X	1GB
Internal storage	128GB (101GB available) UFS 2.2	4GB (2GB available)
External storage	Not supported	Until 64GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	HMD XR21	Bq Aquaris 3.5
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM	2 slots (Dual-SIM) Standard mini-SIM (2FF)
Maximum Download / Upload	2000/1024 Mbps	21/5.76 Mbps
Network technology	2G, 3G, 4G, 5G	2G, 3G
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	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	UMTS 900/2100
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	Not supported
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, UMTS, HSDPA, HSUPA, HSPA+
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	Bq Aquaris 3.5
Back camera (main camera)	(dual camera) 64 megapixels 8MP ultrawide f/2.21/4"1.12µm	2 megapixels
Main camera resolution	10120x6328 pixels	1600x1200 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	VGA (640x480)
Flash	Dual-LED flash	Not supported
Focal aperture	f/1.8 (aperture)	feature not registered
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	Not supported
Touch focus	Supported	Not supported
Image stabilization	OIS: Optical stabilization	feature not registered
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Smile detection
BSI sensor	Supported	Not supported
HDR	HDR photo on both cameras	Not supported
Camera extras	1080p@30fps	feature not registered
📸 Front camera
	HMD XR21	Bq Aquaris 3.5
Front camera (secondary)	16 megapixels	0.3 megapixels
Front camera resolution	4608x3456 pixels	640x480 pixels
Video recording (secondary)	Full HD (1920x1080)	VGA (640x480)
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	Bq Aquaris 3.5
Loudspeaker	Stereo sound with dual speakers	Supported
Active noise cancellation	2 microphones	Not supported
Radio	FM	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.264, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, eAAC+
🔌 Connectivity
	HMD XR21	Bq Aquaris 3.5
USB	USB 2.0 Type-C, USB OTG On-The-Go	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.1 + A2DP/LE	4.0 + A2DP
WiFi	802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz)
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, NavIC	A-GPS, GeoTagging
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	HMD XR21	Bq Aquaris 3.5
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	HMD XR21	Bq Aquaris 3.5
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	4800 mAh	1200 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)	10 hours
Standby	feature not registered	feature not registered
➕ Other features
	HMD XR21	Bq Aquaris 3.5
Call control	Voice dialing, Voice recorder, Voice commands	Voice recorder
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
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Midnight Black	• Colors: Black, White • 4GB or 16GB microSD included • Viewing angle screen of 178º • WiFi hotspot Java framework
☢️ Radiation rate
	HMD XR21	Bq Aquaris 3.5
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