Samsung Galaxy S21 Ultra (SM-G998W 128GB) vs Umidigi A11 Pro Max (128GB/4GB)
Side by side comparison between Samsung Galaxy S21 Ultra vs Umidigi A11 Pro Max phones, differences, pros, cons and full specifications. What's the better?
,
6.8"
AMOLED
AMOLED
1440x3200
108
MP
MP
40mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
6.8"
IPS
IPS
1080x2460
48
MP
MP
24mp
4GB
RAM
RAM
Octa-core
5150
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S21 Ultra (SM-G998W 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!
20 Common items in both devices |
128GB (101GB available) / 128GB (108GB available) |
Aluminum frame, glass front/back / Aluminum body, glass front |
16 million |
6.8" |
PDAF: phase detection autofocus on both cameras / PDAF: phase detection autofocus |
HDR photo/video on both cameras / HDR photo on both cameras |
f/1.8 (aperture) |
+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 | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
Model | Galaxy S21 Ultra (SM-G998W 128GB) | A11 Pro Max (128GB/4GB) |
Other model names | Galaxy S21 Ultra 5G (SM-G998W) | UMIDIGI A11 Pro Max (4GB RAM) |
Country or region available | Canada | (Global, International) |
Brand | Samsung | Umidigi |
Release date | 1/29/2021, Announced: 1/14/2021 | 8/1/2021 |
Depth | 8.9 millimeters (0.35 inches) | 8.6 millimeters (0.34 inches) |
Size (width x height) | 75.6 x 165.1 millimeters (2.98 x 6.5 in) | 75.6 x 167.8 millimeters (2.98 x 6.61 in) |
Weight | 227 grams (7.95 ounces) | 225 grams (7.88 ounces) |
Build, materials | Aluminum frame, glass front/back | Aluminum body, glass front |
Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | Not supported |
📲 Display | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
Display type | Dynamic AMOLED | TFT IPS LCD |
Screen size | 6.8" inches | 6.8" inches |
Screen-to-body ratio | ~89.4% (screen-to-body ratio) | ~86.6% (screen-to-body ratio) |
Display resolution | 1440x3200 pixels (20:9) | 1080x2460 pixels (20.5:9) |
Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
Pixel density (dot pitch) | 516 PPI | 395 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass Victus | Not supported |
Refresh rate | 120Hz | 60Hz |
Display features | 1500nits[peak] HDR10+ Always-On Display | Not supported |
🤖 Operating System | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
System version | Android 11 | Android 11 |
Firmware update | Android 14 | feature not registered |
User Interface | One UI 3.1 / 4.1 / 5.1 / 6.0 | feature not registered |
⚙️ Processor | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
Chipset | 64bit: Qualcomm Snapdragon 888 (SM8350) (5nm) | 64bit: MediaTek Helio G80 (MT6769V/CU) (12nm) |
CPU | Octa-core, 3 processors: 1x 2.84GHz Kryo 680 (Single-core) 3x 2.42GHz Kryo 680 (Triple-core) 4x 1.8GHz Kryo 680 (Quad-core) | Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core) |
GPU graphical controller | Qualcomm Adreno 660 (840MHz) | ARM Mali-G52 MC2 (950MHz) |
Performance (benchmark) | AnTuTu: 681099 (v8), 809165 (v9) Geekbench: 3539 (v5.2) GFXBench: 54fps (ES 3.1 onscreen) | AnTuTu: 194559 (v9) |
💽 Memory and storage | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
RAM memory | 12GB LPDDR5 | 4GB LPDDR4X |
Internal storage | 128GB (101GB available) UFS 3.1 | 128GB (108GB available) eMMC 5.1 |
External storage | Not supported | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
SIM card | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM | 2 slots (Dual-SIM) nano-SIM (4FF) |
Maximum Download / Upload | 5000/1920 Mbps | 600/150 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 | CDMA 800, GSM 850/900/1800/1900 |
Primary 3G network | UMTS 850/900/1700/1900/2100 | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100 |
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 | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41) VoLTE |
Primary 5G network | SA/NSA/Sub6 (2, 41, 66, 71) | Not supported |
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, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
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, 18, 19, 20, 25, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46) VoLTE | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41) VoLTE |
Secondary 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 |
📷 Camera | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
Back camera (main camera) | (quad camera) 108 megapixels 10MP periscope telephoto f/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom 10MP telephoto f/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom 12MP ultrawide f/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video | (triple camera) 48 megapixels 16MP ultrawide f/2.2120° 2MP macro f/2.4 |
Main camera resolution | 12000x9000 pixels | 8000x6000 pixels |
Video recording (primary) | 8K UHD (7680x4320) 24 fps | Full HD (1920x1080) 30 fps |
Flash | LED flash | Dual-LED flash |
Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
Focal length | 26mm lens | feature not registered |
Sensor size | 1/1.33" inches | 1/2" inches |
Pixel size | 1.8µm pixel | 0.8µm pixel |
Autofocus | PDAF: phase detection autofocus on both cameras | PDAF: phase detection autofocus |
Touch focus | Supported | Supported |
Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
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 | HDR photo on both cameras |
Camera extras | 4K@60fps 1080p@240fps 720p@960fps | Sony IMX582 sensor Infrared temperature sensor |
📸 Front camera | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
Front camera (secondary) | 40 megapixels | 24 megapixels |
Front camera resolution | 7296x5472 pixels | 5632x4224 pixels |
Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
Front flash | Not supported | Not supported |
Focal aperture | f/2.2 (aperture) | f/1.8 (aperture) |
Focal length | 26mm lens | feature not registered |
Sensor size | 1/2.8" inches | feature not registered |
Pixel size | 0.7µm pixel | feature not registered |
🔉 Sound and multimedia | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Mono sound (not stereo) |
Active noise cancellation | 2 microphones or more | 2 microphones or more |
Radio | FM | 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 | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
USB | USB 3.2 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
Audio output | Type-C reversible connector | 3.5mm jack |
TV output | USB Type-C (reversible) | USB Type-C (reversible) |
Bluetooth | 5.2 + 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) WiFi Direct, hotspot |
DLNA | Supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO |
NFC | Supported | Not supported |
Infrared port | Not supported | Not supported |
🧭 Sensors | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor |
Vibrating alert | Supported | Supported |
🔋 Battery | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
Battery capacity | 5000 mAh | 5150 mAh |
Charger, watts | 25W Wired fast charging USB Power Delivery 3.0 | 10W Wired charging |
Inductive / wireless charging | 15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging | Not supported |
Talk time autonomy | feature not registered | feature not registered |
Standby | feature not registered | feature not registered |
➕ Other features | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
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: Phantom Black, Silver, Titanium, Navy, Brown • Samsung Pay (Visa, MasterCard) • Samsung DeX • Stylus pen support | • Colors: Frost Grey, Mist Blue |
☢️ Radiation rate | ||
Galaxy S21 Ultra (SM-G998W 128GB) | Umidigi A11 Pro Max (128GB/4GB) | |
SAR 1.6W/kg (USA, Mexico, etc.) | 1.12W/kg (head), 1.25W/kg (body) | feature not registered |
SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |