Samsung W21 5G vs Samsung Galaxy S24 (SM-S921U 256GB)
Side by side comparison between Samsung W21 5G vs Samsung Galaxy S24 phones, differences, pros, cons and full specifications. What's the better?
,
7.6"
AMOLED
AMOLED
1768x2208
12.2
MP
MP
10mp
12GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
6.2"
AMOLED
AMOLED
1080x2340
50
MP
MP
12mp
8GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S24 (SM-S921U 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!
7 Advantages 
15 Advantages | 33 Common items in both devices |
| Aluminum frame, flexible plastic screen, glass back / Aluminum frame, glass front/back |
| Flexible Super AMOLED / Dynamic AMOLED |
| HDR10+ |
| 120Hz |
| 16 million |
| LED flash |
| Digital and optical zoom |
| +26 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 W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| Change model | ||
| Model | W21 5G | Galaxy S24 (SM-S921U 256GB) |
| Other model names | 三星W21 5G SM-W2021 (China Telecom edition) | Galaxy S24 (Snapdragon) SM-S921U1 |
| Country or region available |  China |  USA |
| Brand | Samsung | Samsung |
| Release date | 11/1/2020 | 1/24/2024, Announced: 1/17/2024 |
| Depth | 6.9 millimeters (0.27 inches) | 7.6 millimeters (0.3 inches) |
| Size (width x height) | 128.2 x 159.2 millimeters (5.05 x 6.27 in) | 70.6 x 147 millimeters (2.78 x 5.79 in) |
| Weight | 282 grams (9.87 ounces) | 167 grams (5.85 ounces) |
| Build, materials | Aluminum frame, flexible plastic screen, glass back | Aluminum frame, glass front/back Back: Gorilla Glass Victus 2 |
| Protection against water and others | Not supported | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| Display type | Flexible Super AMOLED | Dynamic AMOLED |
| Screen size | 7.6" inches | 6.2" inches |
| Screen-to-body ratio | ~89.1% (screen-to-body ratio) | ~90.9% (screen-to-body ratio) |
| Display resolution | 1768x2208 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 372 PPI | 416 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus | Gorilla Glass Victus 2 |
| Refresh rate | 120Hz | 120Hz |
| Display features | HDR10+ Extra display: Super AMOLED 6.23" (816x2260) Gorilla Glass Victus | 2600nits[peak] HDR10+ Always-On Display |
🤖 Operating System | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| System version | Android 10 | Android 14 |
| Firmware update | Android 13 | feature not registered |
| User Interface | One UI 3.1 / 4.1 / 5.0 | One UI 6.1 |
⚙️ Processor | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 865+ (SM8250-AB) (7nm) | 64bit: Qualcomm Snapdragon 8 Gen 3 (SM8650-AC) (4nm) |
| CPU | Octa-core, 3 processors: 1x 3.09GHz Kryo 585 (Single-core) 3x 2.42GHz Kryo 585 (Triple-core) 4x 1.8GHz Kryo 585 (Quad-core) | Octa-core, 4 processors: 1x 3.4GHz ARM Cortex-X4 (Single-core) 3x 3.15GHz ARM Cortex-A720 (Triple-core) 2x 2.96GHz ARM Cortex-A720 (Dual-core) 2x 2.27GHz ARM Cortex-A520 (Dual-core) |
| GPU graphical controller | Qualcomm Adreno 650 (250-646MHz) | Qualcomm Adreno 750 (1GHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 1221951 (v9), 1697143 (v10) Geekbench: 5833 (v5), 6747 (v6) |
💽 Memory and storage | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| RAM memory | 12GB LPDDR5 | 8GB LPDDR5X |
| Internal storage | 512GB (455GB available) UFS 3.1 | 256GB (226GB available) UFS 4.0 |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| 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) | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 2000/1024 Mbps | 5000/1024 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) VoLTE |
| Primary 5G network | Sub6 (1, 28, 41, 78, 79) | SA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 20, 25, 38, 41, 66, 71, 77, 78) mmWave (260, 261) |
| 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, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6, mmWave |
| Secondary 2G network | GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1900/2100 | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) VoLTE |
| Secondary 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, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6, mmWave |
📷 Camera | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| Back camera (main camera) | (triple camera) 12.2 megapixels 12MP telephoto f/2.452mm1/3.6"1.0µmPDAFOIS2x-optical-zoom 12MP ultrawide f/2.2123°12mm1.12µm | (triple camera) 50 megapixels 10MP telephoto f/2.467mm1/3.94"1.0µmPDAFOIS3x-optical-zoom 12MP ultrawide f/2.213mm120°1/2.55"1.4µmSuper-Steady |
| Main camera resolution | 4032x3024 pixels | 8160x6120 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 60 fps | 8K UHD (7680x4320) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm lens | 24mm lens |
| Sensor size | 1/1.76" inches | 1/1.56" inches |
| Pixel size | 1.8µm pixel | 1µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | OIS: Optical stabilization |
| Zoom | Digital and optical zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Supported |
| HDR | HDR photo/video on both cameras | HDR photo/video on both cameras |
| Camera extras | Cover camera: 10MP (f/2.2) 4K@30/60fps 1080p@60fps 1080p@240fps (slow motion) 720p@960fps (slow motion) | 8K@24/30fps 4K@30/60fps 1080p@30/60/240fps HDR10+ |
📸 Front camera | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| Front camera (secondary) | 10 megapixels | 12 megapixels |
| Front camera resolution | 3872x2592 pixels | 4000x3000 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/2.2 (aperture) |
| Focal length | 26mm lens | 26mm lens |
| Sensor size | 1/3" inches | feature not registered |
| Pixel size | 1.22µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Stereo sound 32-bit/384kHz Tuned by AKG |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | 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, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | USB 3.2 Type-C, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | Type-C reversible connector |
| TV output | USB Type-C (reversible) | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.3 + 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/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Barometer Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 4500 mAh | 4000 mAh |
| Charger, watts | 25W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 | 25W Wired fast charging Reverse charging by cable |
| Inductive / wireless charging | 11W Qi Wireless charging (Qi/WPC) 4.5W Reverse wireless charging | 15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging |
| Talk time autonomy | 31 hours (1.3 days) | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| 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: Gold • Bixby • Samsung Wireless DeX • Samsung Pay (MST, NFC) | • Colors: Onyx Black, Marble Grey, Cobalt Violet, Amber Yellow, Jade Green, Sandstone Orange, Sapphire Blue • Samsung DeX |
☢️ Radiation rate | ||
| Samsung W21 5G | Galaxy S24 (SM-S921U 256GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.23W/kg (head), 1.1W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.859W/kg (head), 1.453W/kg (body) | feature not registered |