Samsung Z (SM-Z910F) vs HMD XR21
Side by side comparison between Samsung Z vs HMD XR21 phones, differences, pros, cons and full specifications. What's the better?
,
4.8"
AMOLED
AMOLED
720x1280
8
MP
MP
2.1mp
2GB
RAM
RAM
Quad-core
2600
mAh
mAh
(Removable)
vs
6.49"
IPS
IPS
1080x2400
64
MP
MP
16mp
6GB
RAM
RAM
Octa-core
4800
mAh
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!
6 Advantages 
23 Advantages | 24 Common items in both devices |
| 16 million |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| Full HD (1920x1080) |
| (front) Full HD (1920x1080) |
| Capacitive |
| Multitouch |
| +17 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 | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| Model | Samsung Z (SM-Z910F) | HMD XR21 |
| Other model names | Samsung SM-Z910F, Samsung Redwood | HMD XR21 TA-1592 |
| Country or region available |  Russia |  (Global, International) |
| Brand | Samsung | HMD |
| Release date | 8/1/2014 | 5/1/2024, Announced: 5/14/2024 |
| Depth | 8.5 millimeters (0.33 inches) | 10.45 millimeters (0.41 inches) |
| Size (width x height) | 69.8 x 138.2 millimeters (2.75 x 5.44 in) | 78.58 x 168 millimeters (3.09 x 6.61 in) |
| Weight | 136 grams (4.76 ounces) | 231 grams (8.09 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | 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. |
📲 Display | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 4.8" inches | 6.49" inches |
| Screen-to-body ratio | ~65.8% (screen-to-body ratio) | ~77% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 306 PPI | 406 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass Victus |
| Refresh rate | feature not registered | 120Hz |
| Display features | feature not registered | 450nits[typ], 550nits[peak] |
🤖 Operating System | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| System version | Tizen 2.2.1 | Android 13 |
| Firmware update | Tizen 2.3 | Android 14 |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| Chipset | 32bit: Qualcomm Snapdragon 800 MSM8974AA (28nm) | 64bit: Qualcomm Snapdragon 695 (SM6375) (6nm) |
| CPU | Quad-core, 1 processor: 4x 2.3GHz Krait 400 (Quad-core) | Octa-core, 2 processors: 2x 2.2GHz Kryo 660 Gold (Dual-core) 6x 1.7GHz Kryo 660 Silver (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 330 | Qualcomm Adreno 619 (840MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| RAM memory | 2GB LPDDR3 | 6GB LPDDR4X |
| Internal storage | 16GB (12GB available) | 128GB (101GB available) UFS 2.2 |
| External storage | Until 64GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
| SIM card | 1 slot (Single-SIM) micro-SIM (3FF) | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 150/50 Mbps | 2000/1024 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| 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 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat4 800/850/900/1800/2100/2600 (Bands 1,3,5,7,8,20) | 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 |
| Primary 5G network | Not supported | SA/NSA (1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 48, 66, 71, 77, 78, 79) |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | 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 |
| Secondary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
📷 Camera | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| Back camera (main camera) | 8 megapixels | (dual camera) 64 megapixels 8MP ultrawide f/2.21/4"1.12µm |
| Main camera resolution | 3264x2448 pixels | 10120x6328 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | feature not registered | 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 | feature not registered |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | Not supported | OIS: Optical stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | Not supported | HDR photo on both cameras |
| Camera extras | feature not registered | 1080p@30fps |
📸 Front camera | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| Front camera (secondary) | 2.1 megapixels | 16 megapixels |
| Front camera resolution | 1920x1080 pixels | 4608x3456 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 | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| Loudspeaker | Supported | Stereo sound with dual speakers |
| Active noise cancellation | 2 microphones or more | 2 microphones |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| USB | MicroUSB 2.0 | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Micro-B USB MHL | USB Type-C (reversible) |
| Bluetooth | 4.0 + A2DP | 5.1 + A2DP/LE |
| WiFi | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) + MIMO | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, NavIC |
| NFC | Supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor Gyroscope Hall effect Heart rate Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 2600 mAh | 4800 mAh |
| Charger, watts | Wired charging | 33W Wired fast charging Reverse charging by cable Quick Charge 3 USB Power Delivery 2.0 |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | feature not registered | 48 hours (2 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| Call control | Voice dialing, Voice recorder | 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, Brown • WiFi hotspot Java framework | • Colors: Midnight Black |
☢️ Radiation rate | ||
| Samsung Z (SM-Z910F) | HMD XR21 | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.96W/kg (head), 1.33W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.734W/kg (head), 0.304W/kg (body) | feature not registered |