Samsung Galaxy Z Fold 4 (SM-F936W 256GB) vs Motorola Primus (XT621)
Side by side comparison between Samsung Galaxy Z Fold 4 vs Motorola Primus phones, differences, pros, cons and full specifications. What's the better?
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7.6"
AMOLED
AMOLED
1812x2176
50
MP
MP
10mp
12GB
RAM
RAM
Octa-core
4400
mAh
mAh
(Non removable)
vs
What's the better phone? Samsung Galaxy Z Fold 4 (SM-F936W 256GB)
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!
34 Advantages 
6 Advantages | 8 Common items in both devices |
| 16 million |
| LED flash |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Proximity sensor |
| + 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 | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| Model | Galaxy Z Fold 4 (SM-F936W 256GB) | Primus (XT621) |
| Other model names | Galaxy Fold4 5G (SM-F936W) | Nextel Motorola Primus XT621, Motorola XT621 Primus |
| Country or region available |  Canada |   (Global, International), (Latin America) |
| Brand | Samsung | Motorola |
| Release date | 8/25/2022, Announced: 8/10/2022 | 1/1/2013 |
| Depth | 6.3 millimeters (0.25 inches) | 12.3 millimeters (0.48 inches) |
| Size (width x height) | 130.1 x 155.1 millimeters (5.12 x 6.11 in) | 60 x 119 millimeters (2.36 x 4.69 in) |
| Weight | 263 grams (9.21 ounces) | 145 grams (5.08 ounces) |
| Build, materials | Aluminum frame, flexible plastic screen, glass back Back: Gorilla Glass Victus+ | feature not registered |
| Protection against water and others | IPX8 certified: water resistant up to 1.5 meters and 30min | Not supported |
📲 Display | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| Display type | Dynamic AMOLED | TFT LCD |
| Screen size | 7.6" inches | 4" inches |
| Screen-to-body ratio | ~90.8% (screen-to-body ratio) | ~63.8% (screen-to-body ratio) |
| Display resolution | 1812x2176 pixels | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 373 PPI | 233 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass |
| Refresh rate | 120Hz | feature not registered |
| Display features | 1200nits[peak] HDR10+ Always-On Display Extra display: Dynamic AMOLED 2X 6.2" (904x2316), 120Hz, Gorilla Glass Victus+ | feature not registered |
🤖 Operating System | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| System version | Android 12 | Android 2.3.6 Gingerbread |
| Firmware update | Android 14 | feature not registered |
| User Interface | One UI 4.1 / 5.1 / 6.0 | feature not registered |
⚙️ Processor | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| Chipset | 64bit: Qualcomm Snapdragon 8+ Gen 1 (SM8475) (4nm) | 32bit: Qualcomm Snapdragon S2 MSM8255T (45nm) |
| CPU | Octa-core, 3 processors: 1x 3.19GHz ARM Cortex-X2 (Single-core) 3x 2.75GHz ARM Cortex-A710 (Triple-core) 4x 2GHz ARM Cortex-A510 (Quad-core) | Single-core, 1 processor: 1x 1.2GHz Scorpion (Single-core) |
| GPU graphical controller | Qualcomm Adreno 730 (818MHz) | Qualcomm Adreno 205 |
| Performance (benchmark) | AnTuTu: 964622 (v9) Geekbench: 3981 (v5.1) GFXBench: 43fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| RAM memory | 12GB LPDDR5 | 1GB LPDDR2 |
| Internal storage | 256GB (216GB available) UFS 3.1 | 4GB (1GB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Not supported |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 3000/1024 Mbps | 7.2 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 | iDEN 800 UMTS 2100/1900/1700 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46) VoLTE | Not supported |
| Primary 5G network | SA/NSA/Sub6 (2, 5, 38, 41, 66, 71, 78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | iDEN, GPRS, EDGE, UMTS, HSDPA, HSUPA |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | Not supported |
📷 Camera | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| Back camera (main camera) | (triple camera) 50 megapixels 10MP telephoto f/2.466mm1.0µmPDAFOIS3x-optical-zoom 12MP ultrawide f/2.2123°12mm1.12µm | 5 megapixels |
| Main camera resolution | 8160x6120 pixels | 2592x1944 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps | HD (1280x720) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | 23mm lens | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | 1µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Not supported |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | Not supported |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo/video on both cameras | Not supported |
| Camera extras | 8K@24fps 4K@30/60fps 1080p@30/60fps 1080p@240fps (slow motion) 720p@960fps (slow motion) Extra cover camera: 4MP (f/1.8 2.0µm) | feature not registered |
📸 Front camera | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| Front camera (secondary) | 10 megapixels | Not supported |
| Front camera resolution | 3872x2592 pixels | Not supported |
| Video recording (secondary) | 4K UHD (3840x2160) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | feature not registered |
| Focal length | 24mm lens | feature not registered |
| Sensor size | 1/3" inches | feature not registered |
| Pixel size | 1.22µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | Not supported | 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, AAC+ |
🔌 Connectivity | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.2 + A2DP/LE | 2.1 + A2DP |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) BP7X |
| Battery capacity | 4400 mAh | 1860 mAh |
| Charger, watts | 25W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 | Wired charging |
| Inductive / wireless charging | 15W Qi Wireless charging (Qi/WPC) 4.5W Reverse wireless charging | feature not registered |
| Talk time autonomy | 39 hours (1.6 days) | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| 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 | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Phantom Black, Graygreen, Beige, Burgundy • Samsung DeX • Samsung Pay • S Pen (Stylus Pen) | • Colors: Black • Push-to-Talk (PTT) • WiFi hotspot • Java framework |
☢️ Radiation rate | ||
| Galaxy Z Fold 4 (SM-F936W 256GB) | Motorola Primus (XT621) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.79W/kg (head), 1.11W/kg (body) | 1.23W/kg (head), 0.42W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.73W/kg (head), 0.31W/kg (body) |