In depth comparison and review of Samsung Galaxy S21 Ultra 5G and Realme GT 2 Pro. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Samsung Galaxy S21 Ultra 5G | Realme GT 2 Pro |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-G998B/DS | RMX3301 | |
| Form Factor | Touch | Touch | |
| Height | 161.5 mm | 163.2 mm | Realme GT 2 Pro has greater height than Samsung Galaxy S21 Ultra 5G. |
| Width | 75.6 mm | 74.7 mm | Samsung Galaxy S21 Ultra 5G has greater width than Realme GT 2 Pro. |
| Depth | 8.9 mm | 8.18 mm | Realme GT 2 Pro is narrower than Samsung Galaxy S21 Ultra 5G. |
| Weight | 227 g | 189 g | Realme GT 2 Pro is lighter than Samsung Galaxy S21 Ultra 5G. |
| Body Colour | Phantom silver | Phantom black | Phantom navy | Phantom brown | Phantom titanium | Paper white | Steel black | |
| Body Material | - | ISCC-certified biopolymer | |
| Protection | Dustproof, splashproof, water-resistant | - | |
| Waterproof (Water-resistant) | Yes | - | Samsung Galaxy S21 Ultra 5G is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 1.58 W/kg (body), 0.714 W/kg (head), 2.56 W/kg (limb) | 0.994 W/kg (head), 2.79 W/kg (limb), 1.279 W/kg (body) | |
| Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM, Electronic SIM card (e-SIM) | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy S21 Ultra 5G | Realme GT 2 Pro |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Infinity-O Dynamic AMOLED 2X | AMOLED (LTPO) | |
| Screen Size (Display Size) | 6.8" | 6.7" | Samsung Galaxy S21 Ultra 5G has larger screen size than Realme GT 2 Pro. |
| Screen Resolution (Display Resolution) | 3200 x 1440 pixels | 3216 x 1440 pixels | Realme GT 2 Pro has better screen resolution than Samsung Galaxy S21 Ultra 5G. |
| Display Format | QHD+ | WQHD+ | |
| Pixel Density | 515 ppi | 525 ppi | Realme GT 2 Pro has better pixel density than Samsung Galaxy S21 Ultra 5G. |
| Max Brightness | - | 1400 cd/m² | |
| Colour Depth | 16.7 million colours | 1.07 billion colours | Realme GT 2 Pro has better colour depth than Samsung Galaxy S21 Ultra 5G. |
| Contrast Ratio | - | 5000000:1 | |
| HDR | Yes | Yes | Both phones have HDR. |
| HDR Technology | HDR10+ | HDR10+ | |
| Display Enhancement Technology | Eye Comfort Shield | - | |
| Display Refresh Rate | 120 Hz | 120 Hz | Both phones have the same refresh rate. |
| Touch Sampling Rate | - | 1000 Hz | |
| Display Features | Edge Screen, AOD(Always On Display) | DisplayMate A+, 100% DCI-P3, 1-120Hz adaptive refresh rate with LTPO 2.0 technology, Brightness levels: 10240, JNCD 0.5 | |
| Display Protection (Screen Protector) | Corning Gorilla Glass Victus (scratch resistant glass) | Corning Gorilla Glass Victus (scratch resistant glass) |
| PROCESSOR | Samsung Galaxy S21 Ultra 5G | Realme GT 2 Pro |
|---|
| Processor Type (CPU) | Samsung Exynos 2100 | Qualcomm Snapdragon 8 Gen 1 | |
|---|---|---|---|
| Processor Number | - | SM8450 | |
| Clock Speed | 2.9 GHz | 3 GHz | Realme GT 2 Pro has higher clock speed than Samsung Galaxy S21 Ultra 5G. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Mali-G78 MP14 | Qualcomm ADRENO |
| MEMORY | Samsung Galaxy S21 Ultra 5G | Realme GT 2 Pro |
|---|
| RAM | LPDDR5 SDRAM - 12 GB | LPDDR5 SDRAM - 12 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 256 GB | Realme GT 2 Pro has more internal memory than Samsung Galaxy S21 Ultra 5G. |
| User Memory | 101.7 GB | - | |
| Memory Interface | - | UFS 3.1 |
| CAMERA | Samsung Galaxy S21 Ultra 5G | Realme GT 2 Pro |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 50 Megapixel | Realme GT 2 Pro has better camera resolution than Samsung Galaxy S21 Ultra 5G. |
| Sensor Size | - | 1/1.56" | |
| Sensor Name | - | Sony IMX766 sensor | |
| Lens Type | Ultra wide-angle lens | Wide-angle lens | |
| Lens Aperture | F/2.2 | F/1.8 | Realme GT 2 Pro has better lens aperture than Samsung Galaxy S21 Ultra 5G. |
| Lens Construction | - | 6-element | |
| Field of View (FoV) | 120 degree(s) | 84.4 degree(s) | Samsung Galaxy S21 Ultra 5G has larger lens field of view than Realme GT 2 Pro. |
| Pixel Size | 1.4 μm | - | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Minimum Focal Length (Focal Distance) | - | 23.6 mm | |
| Optical Zoom | 3x | - | |
| Digital Zoom | 100x | - | |
| Self-Timer Delay | Yes | - | |
| Special Effects | Face retouch, Grid Line | HDR, Bokeh effect, video bokeh effect | |
| HDR Mode | Auto HDR mode | AI HDR Video | |
| Camera Modes | Panorama, Slow motion mode, Pro mode, HYPERLAPSE, Super Slow-mo, Flowers, Greenery, Trees, Sky, Beaches, Watersides, Snow, Backlit, Text, Food, Face, Baby, Person, Dog, Cat, People, Sunset, Sunrise, City, Waterfall, Scenery, Stage, Vehicles, Drinks, Animal, Shoes, Indoor, Clothes, Night view, Night, Motion Photo, Mountain, Single Take, Pro Video, Director's View | Slow motion video, Time-lapse mode, Expert Mode, 3D mode, AI Beauty, Filter mode, Dual-View Video, Panorama View, Super Nightscape Mode, Portrait Distortion Correctin, microscope, Tilt Shift, 50MP mode, Bokeh Flare Portrait, Starry time-lapse video, Street Photography Mode, fish-eye mode, AI Nightscape video, Dynamic Bokeh portrait, Tilt-shift time-lapse video | |
| Light Source | High CRI LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, 7680 x 4320 (UHD 8K) at 24fps, Hyperlapse 4K video support at 30 fps, Super Steady 1080p video support at 60 fps | 7680 x 4320 (8k) | |
| Camera Features (Functions) | Playback zoom, blink detection, VDIS (Video Digital Image Stabilisation), Tracking AF, Video location tags, Scene Optimiser, Flaw detection, Shot suggestions, blur detection, HDR10+ recording, Super steady, Quick Measure, Zoom-In Mic, Space Zoom, Take 33MP still photos while playing 8K video, Hybrid Optic Zoom 3x, Super Resolution Zoom up to 30x, Digital zoom up to 12x for video | Video stabilisation, Text scanner, Video Beautify, AI scene recognition, ProLight Imaging technology, AI Noise Reduction Engine 3.0, OIS+EIS dual stabilisation |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 108 Megapixel | 50 Megapixel | Samsung Galaxy S21 Ultra 5G has better second camera resolution than Realme GT 2 Pro. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/1.33" | - | |
| Lens Type (2nd Camera) | Wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/1.8 | F/2.2 | Samsung Galaxy S21 Ultra 5G has better second camera lens aperture than Samsung Galaxy S21 Ultra 5G. |
| Lens Element Qty (2nd Camera) | - | 6-element | |
| Field of View (2nd Camera) | 83 degree(s) | 150 degree(s) | Realme GT 2 Pro has larger second camera lens field of view than Samsung Galaxy S21 Ultra 5G. |
| Pixel Size (2nd Camera) | 0.8 μm | - | |
| Minimum Focal Length (2nd Camera) | - | 15 mm | |
| Camera Features (2nd Camera) | Phase Detect Auto-Focus (PDAF), OIS (Optical Image Stabilisation) | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 10 Megapixel | - | |
|---|---|---|---|
| Lens Type (3rd Camera) | Telephoto lens | Tele-macro lens | |
| Lens Aperture (3rd Camera) | F/2.4 | - | |
| Field of View (3rd Camera) | 35 degree(s) | - | |
| Pixel Size (3rd Camera) | 1.22 μm | - | |
| Camera Features (3rd Camera) | Dual Pixel AF | Micro-lens Camera 2.0, magnification 40x |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 10 Megapixel | - | |
|---|---|---|---|
| Lens Type (4th Camera) | Telephoto lens | - | |
| Lens Aperture (4th Camera) | F/4.9 | - | |
| Field of View (4th Camera) | 10 degree(s) | - | |
| Pixel Size (4th Camera) | 1.22 μm | - | |
| Camera Features (4th Camera) | Dual Pixel AF | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 40 Megapixels | 32 Megapixel | Samsung Galaxy S21 Ultra 5G has better front camera resolution than Realme GT 2 Pro. |
| Sensor Size (Front) | - | 1/3.09" | |
| Sensor Name (Front) | - | Sony IMX615 sensor | |
| Lens Aperture (Front) | F/2.2 | F/2.4 | Samsung Galaxy S21 Ultra 5G has better front lens aperture than Samsung Galaxy S21 Ultra 5G. |
| Field of View (Front) | 80 degree(s) | 80.6 degree(s) | Realme GT 2 Pro has larger front lens field of view than Samsung Galaxy S21 Ultra 5G. |
| Pixel Size (Front) | 0.7 μm | - | |
| Focus Adjustment | Automatic | - | |
| Special Effects (Front) | - | HDR, Portrait bokeh, Adjustable Bokeh | |
| Camera Modes (Front) | - | Beauty mode, Timelapse video, Filter mode, Super nightscape, Dual-View Video, Panorama View, Portrait Distortion Correction | |
| Face Recognition (Face ID) | - | Face recognition | Realme GT 2 Pro has face detection. |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | Phase Detect Auto-Focus (PDAF) | UIS video stabilisation |
| BATTERY AND CHARGING | Samsung Galaxy S21 Ultra 5G | Realme GT 2 Pro |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 5000 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 2.0, Adaptive Fast Charging, Samsung Super Fast Charging, Power Delivery 3.0 | SuperDart Charge | Both phones have fast charging technology. |
| Recharge Time (Charging Time) | - | 33 min | |
| Wireless Charging | Yes | - | Samsung Galaxy S21 Ultra 5G can be charged wirelessly. |
| Wireless Charging Standards | WPC, Qi, Fast Wireless Charging 2.0, Wireless PowerShare | - | |
| Talk Time | 2460 minutes | - | |
| Run Time Details | Talk (4G): up to 2460 min Active online usage (LTE): up to 18 hrs Active online usage (Wi-Fi): up to 18 hrs Playback (wireless video): up to 22 hrs Playback (wireless audio): up to 81 hrs |
Streaming (video): up to 21 hrs |
| CELLULAR | Samsung Galaxy S21 Ultra 5G | Realme GT 2 Pro |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | Android 11 | Android 12 | |
| User Interface | - | Realme UI 3.0 | |
| Intelligent Assistant | Bixby | - | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Samsung Galaxy S21 Ultra 5G | Realme GT 2 Pro |
|---|
| Data Transmission | FDD-LTE, TDD-LTE, 5G NR FR1 | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 1700, 850, 800, 900, 800 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 34, Band 38, Band 39, Band 40, Band 41, Band 42, Band 66 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n40 | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n40 | |
| 5G NR Frequency | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD 2300 | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac/ax | IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.2 | Bluetooth 5.2 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Modem | - | Snapdragon X65 5G |
| MEDIA | Samsung Galaxy S21 Ultra 5G | Realme GT 2 Pro |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, DSD, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID, DSD64, DSD128 | AAC, apt-X, LDAC, SBC, apt-X HD, LHDC | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | - | |
| Sound Enhancements | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound | Dolby Atmos sound technology, Hi-Res audio |
| FEATURES | Samsung Galaxy S21 Ultra 5G | Realme GT 2 Pro |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, barometer, gyro sensor, hall sensor, geomagnetic sensor | Accelerometer, proximity sensor, magnetometer, gyro sensor, dual ambient light sensor, dual colour temperature sensor | |
| Security Devices | Fingerprint reader (under display), face recognition | Fingerprint reader (under display) | |
| Additional Phone Features | Air View, MIMO technology, Smart Select, Samsung KNOX, Smart View, Live message, Screen off memo, Bixby Vision, Dual Audio, Bixby Routines, Intelligent Performance Enhancer, AR Doodle, PENUP, Bixby key, Samsung Knox Vault, Private Share function, Enhanced Game Booster, Air Command | Dual noise-cancelling microphones, X-axis linear vibration motor, super-linear dual speakers, Qualcomm 7th generation AI Engine, Stainless Steel Vapour Cooling Max, 360° NFC |
| OTHERS | Samsung Galaxy S21 Ultra 5G | Realme GT 2 Pro |
|---|
| Included Accessories | SIM card removal tool, USB-C to USB-C cable | Screen protection film, SIM card removal tool, USB-C cable, protective case, 65W SuperDart Charger | |
|---|---|---|---|
| Compliant Standards | IP68, HAC (Hearing Aid Compatible) | - | |
| Max Depth of Water Resistance | 1.5 m | - |
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