HMD XR21 vs Samsung Galaxy J7 Duo (SM-J720M/DS)
Side by side comparison between HMD XR21 vs Samsung Galaxy J7 Duo phones, differences, pros, cons and full specifications. What's the better?
,
6.49"
IPS
IPS
1080x2400
64
MP
MP
16mp
6GB
RAM
RAM
Octa-core
4800
mAh
mAh
(Non removable)
vs
5.5"
AMOLED
AMOLED
720x1280
13
MP
MP
8mp
3GB
RAM
RAM
Octa-core
3000
mAh
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!
31 Advantages 
7 Advantages | 20 Common items in both devices |
| Plastic body, glass front |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| Full HD (1920x1080) |
| (front) Full HD (1920x1080) |
| Capacitive |
| +13 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 Clear highlight📱 Model features | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| Change model | ||
| Model | HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) |
| Other model names | HMD XR21 TA-1592 | Galaxy J7 Duo J720M/Dual-Sim, Samsung J720 |
| Country or region available |  (Global, International) |   (Latin America), Brazil |
| Brand | HMD | Samsung |
| Release date | 5/1/2024, Announced: 5/14/2024 | 4/1/2018 |
| Depth | 10.45 millimeters (0.41 inches) | 8.2 millimeters (0.32 inches) |
| Size (width x height) | 78.58 x 168 millimeters (3.09 x 6.61 in) | 77.2 x 153.5 millimeters (3.04 x 6.04 in) |
| Weight | 231 grams (8.09 ounces) | 174 grams (6.09 ounces) |
| Build, materials | Plastic body, glass front | Plastic 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 | Galaxy J7 Duo (SM-J720M/DS) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 6.49" inches | 5.5" inches |
| Screen-to-body ratio | ~77% (screen-to-body ratio) | ~70.4% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 720x1280 pixels (16:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 406 PPI | 267 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus | Not supported |
| Refresh rate | 120Hz | 60Hz |
| Display features | 450nits[typ], 550nits[peak] | Not supported |
🤖 Operating System | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| System version | Android 13 | Android 8.0 Oreo |
| Firmware update | Android 14 | Android 10 |
| User Interface | feature not registered | One UI 2.0 |
⚙️ Processor | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| Chipset | 64bit: Qualcomm Snapdragon 695 (SM6375) (6nm) | 64bit: Samsung Exynos 7885 (14nm) |
| CPU | Octa-core, 2 processors: 2x 2.2GHz Kryo 660 Gold (Dual-core) 6x 1.7GHz Kryo 660 Silver (Hexa-core) | Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 619 (840MHz) | ARM Mali-G71 MP2 |
| Performance (benchmark) | feature not registered | AnTuTu: 98104 (v7) |
💽 Memory and storage | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| RAM memory | 6GB LPDDR4X | 3GB LPDDR4 |
| Internal storage | 128GB (101GB available) UFS 2.2 | 32GB (21GB available) eMMC 5.1 |
| External storage | Not supported | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| 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) micro-SIM (3FF) |
| Maximum Download / Upload | 2000/1024 Mbps | 150/50 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 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| 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 Cat4 (1, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66) TD-LTE (38, 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, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| 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, UMTS, HSDPA, HSUPA, HSPA+ |
📷 Camera | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| Back camera (main camera) | (dual camera) 64 megapixels 8MP ultrawide f/2.21/4"1.12µm | (dual camera) 13 megapixels 5MP depth f/1.9 |
| Main camera resolution | 10120x6328 pixels | 4128x3096 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | LED flash on both cameras |
| Focal aperture | f/1.8 (aperture) | f/1.9 (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 | 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 only main camera |
| Camera extras | 1080p@30fps | feature not registered |
📸 Front camera | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| Front camera (secondary) | 16 megapixels | 8 megapixels |
| Front camera resolution | 4608x3456 pixels | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | LED |
| Focal aperture | feature not registered | f/1.9 (aperture) |
| 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 | Galaxy J7 Duo (SM-J720M/DS) | |
| Loudspeaker | Stereo sound with dual speakers | Mono sound (not stereo) |
| 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, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| 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 | 5.0 + A2DP/LE |
| 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 | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer ANT+ Face unlock 2D Fingerprint sensor (front-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 4800 mAh | 3000 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 | Not supported |
| Talk time autonomy | 48 hours (2 days) | 20 hours |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, 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, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Midnight Black | • Colors: Black, Gold, Rose Gold, White • Samsung Pay |
☢️ Radiation rate | ||
| HMD XR21 | Galaxy J7 Duo (SM-J720M/DS) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.97W/kg (head), 0.55W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |