Moto G100 (256GB) Vs Galaxy S21 Ultra (SM-G998B/DS 128GB)
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Side by side comparison between Motorola Moto G100 vs Samsung Galaxy S21 Ultra phones, differences, pros, cons and full specifications. What's the better?
4/4/2021 9:09 AM, updated: 5/19/2025 11:26 AM Compare Samsung Galaxy S21 Ultra X Motorola Moto G100 (256GB) 07Points Specifications Compare Models Pictures 6.7"IPS 1080x2520
64MP16mp
12GBRAMOcta-core
5000mAh(Non removable)
vs 28Points Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB) Compare Motorola Moto G100 X Specifications Compare Models Pictures 6.8"AMOLED 1440x3200
108MP40mp
12GBRAMOcta-core
5000mAh(Non removable)
What's the better phone? Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB)
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 Motorola Moto G100 (256GB) | vs |  28 Advantages Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB) |
| +3.2GHz 64bit Octa-core (7nm)1%More powerful processor, you can open your applications faster | vs | 2.9GHz 64bit Octa-core (5nm) |
| +256GB (237GB available)135%More internal storage for applications and files | vs | 128GB (101GB available) |
| +Until 1TB microSD, microSDXCAdvantageMore external storage for files using memory cards | vs | Not supported |
| +207 grams (7.25 ounces)10%Lighter | vs | 227 grams (7.95 ounces) |
| +Dual-LED flashAdvantageThe Dual-LED flash helps in dark places or in low light | vs | LED flash |
| +f/1.7 (aperture)6%Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure. | vs | f/1.8 (aperture) |
| +3.5mm jackAdvantageHeadsets with 3.5mm Jack size are more common and easy to find in stores | vs | Type-C reversible connector |
| 9.7 millimeters (0.38 inches) | vs | +8.9 millimeters (0.35 inches)9%Thinner |
| Plastic body, glass front | vs | +Aluminum frame, glass front/backAdvantageMore resistant material |
| LTPS IPS LCD | vs | +Dynamic AMOLEDAdvantageDynamic AMOLED display is brighter and more vivid |
| HDR10 | vs | +HDR10+AdvantageThe HDR10+ display provides vibrant colors and more details |
| 90Hz | vs | +120Hz33%The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less. |
| 1080x2520 pixels | vs | +1440x3200 pixels69%Higher resolution screen |
| 409 PPI | vs | +516 PPI26%Crisper display of text, images and videos because it has more pixels per inch (ppi) |
| 6.7" | vs | +6.8"1%Larger screen |
| (quad camera) 64MP + 16MP + 2MP + 0.3MP | vs | +(quad camera) 108MP + 10MP + 10MP + 12MP70%Higher resolution main camera |
| Only digital zoom | vs | +Digital and optical zoomAdvantageThe zoom allows for better focus and approach to take pictures |
| EIS: Digital stabilization | vs | +OIS: Optical stabilizationAdvantageImage stabilization prevents blurry photos and helps in recording motion video |
| 1/2" inches | vs | +1/1.33" inches50%The larger sensor camera lets you take photos with better depth. |
| (dual front camera) 16MP + 8MP | vs | +(front) 40MP67%Higher resolution secondary camera to take pictures and selfies |
| 6K UHD (5760x3240) | vs | +8K UHD (7680x4320)78%More image quality for recording videos with the primary camera |
| Android 12 | vs | +Android 15AdvantageAndroid 15 is newer and safer |
| (5G SA/NSA) 2000 Mbps | vs | +(5G SA/NSA) 5000 Mbps150%Faster for surfing the internet and download files |
| Not supported | vs | +BarometerAdvantageSensors help you use the device |
| Not supported | vs | +UWB (Ultra Wideband)AdvantageSensors help you use the device |
| 20W | vs | +25W25%More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it. |
| Not supported | vs | +Qi wireless charging (Qi/PMA)AdvantageWireless charging is another way to charge the battery. |
| 2 slots (Dual-SIM)(hybrid slot/shares the same microSD slot) | vs | +2 slots (Dual-SIM) + e-SIM (Eletronic)AdvantageYou can have more mobile carriers/operators on the same device. |
| Mono sound (not stereo) | vs | +Stereo soundAdvantageBetter sound quality for listening to music or clearer hands-free calls |
| Not supported | vs | +FMAdvantageThe radio lets you listen to your songs and sports in general |
| Not supported | vs | +DLNAAdvantageWith DLNA technology you can access and play media files on TV, tablet or DLNA compatible device. |
| 5.1 + A2DP/LE | vs | +5.2 + A2DP/LEAdvantageBluetooth 5.2 + A2DP/LE is newer and faster |
| USB 3.1 Type-C, USB OTG On-The-Go | vs | +USB 3.2 Type-C, USB OTG On-The-GoAdvantageNewer and faster USB version for transferring photos, mp3 or data. |
| Not supported | vs | +Gorilla Glass VictusAdvantageProtection against scratches on the screen lets you carry your phone with your keys |
| IP52 certified | vs | +IP68 certifiedAdvantageProtection against water allows you talk to your friends in the rain, for example |
| 27 Common items in both devices |
| 12GB LPDDR5 |
| UFS 3.1 |
| 16 million |
| PDAF: phase detection autofocus / PDAF: phase detection autofocus on both cameras |
| BSI sensor |
| HDR photo on both cameras / HDR photo/video on both cameras |
| (front) 4K UHD (3840x2160) |
| +20 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 | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Change model | ↓ Change model of Moto G100128GB | Choose the model↓ Change model of Galaxy S21 UltraSM-G998B 128GBSM-G998B 256GBSM-G998B 512GBSM-G998B/DS 256GBSM-G998B/DS 512GBSM-G998N 256GBSM-G998N 512GBSM-G998U1 128GBSM-G998U1 256GBSM-G998U1 512GBSM-G998W 128GBSM-G998W 256GB |
| Model | Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) |
| Other model names | Lenovo Moto G100 5G XT2125-4 (256GB + 12GB RAM) | Galaxy S21 Ultra 5G (SM-G998B/Dual-SIM) |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Motorola | Samsung |
| Release date | 4/15/2021, Announced: 3/25/2021 | 1/29/2021, Announced: 1/14/2021 |
| Depth | 9.7 millimeters (0.38 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 73.97 x 168.38 millimeters (2.91 x 6.63 in) | 75.6 x 165.1 millimeters (2.98 x 6.5 in) |
| Weight | 207 grams (7.25 ounces) | 227 grams (7.95 ounces) |
| Build, materials | Plastic body, glass front | Aluminum frame, glass front/back |
| Protection against water and others | IP52 certified: protection against dust and splashing | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Display type | LTPS IPS LCD | Dynamic AMOLED |
| Screen size | 6.7" inches | 6.8" inches |
| Screen-to-body ratio | ~84.2% (screen-to-body ratio) | ~89.4% (screen-to-body ratio) |
| Display resolution | 1080x2520 pixels (21:9) | 1440x3200 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 409 PPI | 516 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass Victus |
| Refresh rate | 90Hz | 120Hz |
| Display features | 560nits[typ]HDR10 | 1500nits[peak]HDR10+Always-On Display |
🤖 Operating System | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| System version | Android 11 | Android 11 |
| Firmware update | Android 12 | Android 15 |
| User Interface | My UX | One UI 3.1 / 4.1 / 5.1 / 6.0 / 7.0 |
⚙️ Processor | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 870 (SM8250-AC) (7nm) | 64bit: Samsung Exynos 2100 (5nm) |
| CPU | Octa-core, 3 processors:1x 3.2GHz Kryo 585 (Single-core)3x 2.42GHz Kryo 585 (Triple-core)4x 1.8GHz Kryo 585 (Quad-core) | Octa-core, 3 processors:1x 2.9GHz ARM Cortex-X1 (Single-core)3x 2.8GHz ARM Cortex-A78 (Triple-core)4x 2.2GHz ARM Cortex-A55 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 650 (670MHz) | ARM Mali-G78 MP14 (854MHz) |
| Performance (benchmark) | AnTuTu: 556137 (v8)Geekbench: 2860 (v5.1)GFXBench: 47fps (ES 3.1 onscreen) | AnTuTu: 657150 (v8), 727634 (v9)Geekbench: 3457 (v5.2)GFXBench: 51fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| RAM memory | 12GB LPDDR5 | 12GB LPDDR5 |
| Internal storage | 256GB (237GB available)UFS 3.1 | 128GB (101GB available)UFS 3.1 |
| External storage | Until 1TB microSD, microSDXC(hybrid slot/shares the same SIM-2 slot) | Not supported |
📶 Mobile networks | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card(hybrid slot/shares the same microSD slot) | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM)nano-SIM (4FF) | 2 slots (Dual-SIM)nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 2000/1024 Mbps | 5000/1920 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 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 32, 34, 66)TD-LTE (38, 39, 40, 41, 42, 43)VoLTE | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66)TD-LTE (38, 39, 40, 41)VoLTE |
| Primary 5G network | SA/NSA (1, 3, 5, 7, 8, 28, 38, 66, 77) | SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78) |
| 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, LTE-A, SA/NSA |
| 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 Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 32, 34, 66)TD-LTE (38, 39, 40, 41, 42, 43)VoLTE | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66)TD-LTE (38, 39, 40, 41)VoLTE |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
📷 Camera | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Back camera (main camera) | (quad camera)64 megapixels16MP ultrawide f/2.2117°1.0µmPDAF2MP depth f/2.41.75µm0.3MP TOF 3D | (quad camera)108 megapixels10MP periscope telephoto f/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom10MP telephoto f/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom12MP ultrawide f/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video |
| Main camera resolution | 10120x6328 pixels | 12000x9000 pixels |
| Video recording (primary) | 6K UHD (5760x3240) 30 fps | 8K UHD (7680x4320) 24 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.7 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | 1/2" inches | 1/1.33" inches |
| Pixel size | 0.7µm pixel | 1.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus on both cameras |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | OIS: Optical stabilization |
| Zoom | Only digital zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Supported |
| HDR | HDR photo on both cameras | HDR photo/video on both cameras |
| Camera extras | 4K@60fps1080p@120fps | 4K@60fps1080p@240fps720p@960fps |
📸 Front camera | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Front camera (secondary) | (dual front camera)16 megapixels8MP ultrawide f/2.4118°1.12µm | 40 megapixels |
| Front camera resolution | 4608x3456 pixels | 7296x5472 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 | feature not registered | 26mm (lens) |
| Sensor size | feature not registered | 1/2.8" inches |
| Pixel size | 1µm pixel | 0.7µm pixel |
🔉 Sound and multimedia | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Loudspeaker | Mono sound (not stereo) | Stereo sound32-bit/384kHzDolby AtmosTuned by AKG |
| Active noise cancellation | 2 microphones or more | 3 microphones |
| Radio | Not supported | FM |
| 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 | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| USB | USB 3.1 Type-C, USB OTG On-The-Go | USB 3.2 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C reversible connector |
| TV output | USB Type-C (reversible) | USB Type-C (reversible) |
| Bluetooth | 5.1 + A2DP/LE | 5.2 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMOWiFi Direct, hotspot | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMOWiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Sensors | AccelerometerAmbient light sensorCompassFace unlock 2DFingerprint sensor (side-mounted)GyroscopeProximity sensor | AccelerometerAmbient light sensorBarometerCompassFace unlock 2DFingerprint sensor (under display)GestureGyroscopeHall effectProximity sensorUWB (Ultra Wideband) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 5000 mAh |
| Charger, watts | 20W Wired fast charging | 25W Wired fast charging USB Power Delivery 3.0 |
| Inductive / wireless charging | Not supported | 15W Qi wireless charging (Qi/PMA)4.5W Reverse wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| 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: Iridescent ocean, Iridescent sky, Slate gray• Protective case included | • Colors: Phantom Black, Silver, Titanium, Navy, Brown• Samsung Pay (Visa, MasterCard)• Samsung DeX• Stylus pen support |
☢️ Radiation rate | ||
| Moto G100 (256GB) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.24W/kg (head), 0.72W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.714W/kg (head), 1.58W/kg (body) |
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