Samsung Galaxy S21 Ultra (SM-G998U1 512GB) vs Google Pixel 9 Pro Fold (GGH2X 512GB)
Side by side comparison between Samsung Galaxy S21 Ultra vs Google Pixel 9 Pro Fold phones, differences, pros, cons and full specifications. What's the better?
,
6.8"
AMOLED
AMOLED
1440x3200
108
MP
MP
40mp
16GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
8"
OLED
OLED
2076x2152
48
MP
MP
10mp
16GB
RAM
RAM
Octa-core
4650
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
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!
12 Advantages 
9 Advantages | 40 Common items in both devices |
| 512GB (457GB available) / 512GB (458GB available) |
| UFS 3.1 |
| Aluminum frame, glass front/back / Aluminum frame, flexible plastic screen, glass back |
| HDR10+ |
| 120Hz |
| 16 million |
| LED flash |
| +33 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-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| Model | Galaxy S21 Ultra (SM-G998U1 512GB) | Pixel 9 Pro Fold (GGH2X 512GB) |
| Other model names | Galaxy S21 Ultra 5G (SM-G998U1) Unlocked | Google Pixel 9 Pro Fold GGH2X |
| Country or region available |  USA |  (Global, International), USA |
| Brand | Samsung | |
| Release date | 1/29/2021, Announced: 1/14/2021 | 9/4/2024, Announced: 8/13/2024 |
| Depth | 8.9 millimeters (0.35 inches) | 5.1 millimeters (0.2 inches) |
| Size (width x height) | 75.6 x 165.1 millimeters (2.98 x 6.5 in) | 150.2 x 155.2 millimeters (5.91 x 6.11 in) |
| Weight | 227 grams (7.95 ounces) | 257 grams (9 ounces) |
| Build, materials | Aluminum frame, glass front/back | Aluminum frame, flexible plastic screen, glass back Back: Gorilla Glass Victus 2 Folded: 10.5mm x 77.1mm x 155.2mm |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | IPX8 certified: water resistant up to 1.5 meters and 30min |
📲 Display | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| Display type | Dynamic AMOLED | LTPO OLED |
| Screen size | 6.8" inches | 8" inches |
| Screen-to-body ratio | ~89.4% (screen-to-body ratio) | ~88.5% (screen-to-body ratio) |
| Display resolution | 1440x3200 pixels (20:9) | 2076x2152 pixels (1:1) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 516 PPI | 374 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus | Not supported |
| Refresh rate | 120Hz | 120Hz |
| Display features | 1500nits[peak] HDR10+ Always-On Display | 2700nits[peak] HDR10+ Always-On Display Extra display: OLED 6.3" (1080x2424), 422 ppi, 120Hz, HDR, Gorilla Glass Victus 2 |
🤖 Operating System | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| System version | Android 11 | Android 14 |
| Firmware update | Android 15 | Android 16 |
| User Interface | One UI 3.1 / 4.1 / 5.1 / 6.0 / 7.0 | feature not registered |
⚙️ Processor | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 888 (SM8350) (5nm) | 64bit: Google Tensor G4 (4nm) |
| 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, 3 processors: 1x 3.1GHz ARM Cortex-X4 (Single-core) 3x 2.6GHz ARM Cortex-A720 (Triple-core) 4x 1.92GHz ARM Cortex-A520 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 660 (840MHz) | ARM Mali-G715 MP7 (940MHz) |
| Performance (benchmark) | AnTuTu: 681099 (v8), 809165 (v9) Geekbench: 3539 (v5.2) GFXBench: 54fps (ES 3.1 onscreen) | AnTuTu: 1222235 (v10) Geekbench: 4783 (v6) |
💽 Memory and storage | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| RAM memory | 16GB LPDDR5 | 16GB LPDDR5X |
| Internal storage | 512GB (457GB available) UFS 3.1 | 512GB (458GB available) UFS 3.1 |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 5000/1920 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 | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 | UMTS 800/850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) VoLTE | LTE Cat24 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 21, 25, 26, 28, 29, 30, 32, 66, 71) TD-LTE (38, 39, 40, 41, 42, 46, 48) VoLTE |
| Primary 5G network | SA/NSA/Sub6 (2, 5, 25, 41, 66, 71) mmWave (260, 261) | SA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 70, 71, 75, 76, 77, 78, 79) mmWave (257, 258, 260, 261) |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6, mmWave |
| Secondary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 | UMTS 800/850/900/1700/1900/2100 |
| Secondary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) VoLTE | LTE Cat24 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 21, 25, 26, 28, 29, 30, 32, 66, 71) TD-LTE (38, 39, 40, 41, 42, 46, 48) VoLTE |
| Secondary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6, mmWave |
📷 Camera | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| 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 10.8MP telephoto f/3.1112mm1/3.2"PDAFOIS5x-optical-zoom 10.5MP ultrawide f/2.2127°1/3.4"PDAF |
| Main camera resolution | 12000x9000 pixels | 8000x6000 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps | 4K UHD (3840x2160) 60 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.7 (aperture) |
| Focal length | 26mm (lens) | 25mm (lens) |
| 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 on both cameras |
| 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 and HDR photo on front camera |
| Camera extras | 4K@60fps 1080p@240fps 720p@960fps | 4K@24/30/60fps 1080p@24/30/60/120/240fps 10-bit HDR Extra camera: 10MP wide (f/2.2 23mm 1/3.94" PDAF) |
📸 Front camera | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| Front camera (secondary) | 40 megapixels | 10 megapixels |
| Front camera resolution | 7296x5472 pixels | 3872x2592 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) | 23mm (lens) |
| Sensor size | 1/2.8" inches | 1/3.94" inches |
| Pixel size | 0.7µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Stereo sound |
| Active noise cancellation | 3 microphones | 3 microphones |
| Radio | FM | 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 | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| 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 | 5.2 + 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/be [wifi7/6E/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, NavIC |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| 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 Barometer Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor UWB (Ultra Wideband) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 5000 mAh | 4650 mAh |
| Charger, watts | 25W Wired fast charging USB Power Delivery 3.0 | 21W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 |
| Inductive / wireless charging | 15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging | 75W Qi wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| 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: Obsidian, Porcelain, Hazel, Rose quartz • Google Cast • Satellite SOS |
☢️ Radiation rate | ||
| Galaxy S21 Ultra (SM-G998U1 512GB) | Google Pixel 9 Pro Fold (GGH2X 512GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.77W/kg (head), 1.02W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.98W/kg (head), 1.39W/kg (body) |