Samsung Galaxy S26 Ultra 5G vs Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB)
Quick Comparison
Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) has better RAM than Samsung Galaxy S26 Ultra 5G. In terms of display resolution, Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) has better resolution of 3200 x 1440 than Samsung Galaxy S26 Ultra 5G which has resolution of 3120 x 1440. Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) has more internal memory than Samsung Galaxy S26 Ultra 5G
| Name | Samsung Galaxy S26 Ultra 5G | Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) |
| RAM | 12 GB | 16 GB |
|---|---|---|
| Display | 6.9 in | 6.8 in |
| Internal Memory | 256 GB | 512 GB |
| Battery | 5000 mAh | 5000 mAh |
| Camera | 200 MP Quad | 108 MP Quad |
| Price | Rs. 139999 | Rs. 111999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is February 25, 2026. The cost of Samsung Galaxy S26 Ultra 5G is Rs. 139999. The launch Date of the second phone is January 14, 2021. The cost of Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) is Rs. 111999.
Display comparison
Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) has screen size of 6.8 inches which falls short to Samsung Galaxy S26 Ultra 5G's 6.9 inch screen. Samsung Galaxy S26 Ultra 5G has LTPO AMOLED Screen type where as Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) has Screen type. Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) has display density of 515 PPI & Samsung Galaxy S26 Ultra 5G has only 500 PPI display density. In terms of screen to body ratio, Samsung Galaxy S26 Ultra 5G has better screen to body ratio of ~ 90.7% than Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB)'s ~ 89.8%. Samsung Galaxy S26 Ultra 5G has 20.5:9 aspect ratio where as Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) has 20:9 aspect ratio.
Memory comparison
Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB)'s larger 16 GB RAM is better for playing games and all with respect to Samsung Galaxy S26 Ultra 5G's lower 12 GB RAM. Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) has more Internal Memory (512 GB) than Samsung Galaxy S26 Ultra 5G (256 GB).
Camera comparison
Samsung Galaxy S26 Ultra 5G's 200 MP Quad Rear Camera outshines Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB)'s 108 MP Quad Rear Camera in terms of resolution. Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) will be better choice if you're looking to click lot of selfies as it has better 40 MP Front Camera in comparison to Samsung Galaxy S26 Ultra 5G's 12 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 16 and the second one on 10 version.
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Full Comparison
| Name | Samsung Galaxy S26 Ultra 5G | Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) |
| General | ||
| Model | SM-S948B, SM-S948B/DS, SM-S948U, SM-S948U1, SM-S948W, SM-S948N, SM-S9480, SM-S948E, SM-S948E/DS | Galaxy S21 Ultra 5G |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | SIM 1 + SIM 2 / SIM 1 + eSIM / Dual eSIM SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Security Updates | 7 years | |
| Release Date | February 25, 2026 | January 14, 2021 |
| In The Box | Headset, Charging Cable, Sim Ejector Pin | |
| Design | ||
| Dimensions | 78.1 x 163.6 x 7.9 mm | 75.6 x 165.1 x 8.9 mm |
| Weight | 214 g | 227 g |
| Colors | Cobalt Violet, Sky Blue, Black, White, Silver Shadow, Pink Gold | |
| Display | ||
| Type | Color Dynamic LTPO AMOLED 2X (16M Colors) | Color Dynamic AMOLED 2X (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.9 inches, 1440 x 3120 pixels, 120 Hz | 6.8 inches, 1440 x 3200 pixels, 120 Hz |
| Aspect Ratio | 20.5:9 | 20:9 |
| PPI | ~ 500 PPI | ~ 515 PPI |
| Screen to Body Ratio | ~ 90.7% | ~ 89.8% |
| Glass Type | Corning Gorilla Armor 2 | Corning Gorilla Glass Victus |
| Brightness | 2600 nits (peak) | |
| Features | DX anti-reflective coating, Privacy Display | Always-on Display, HDR10+ |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 12 GB | 16 GB |
| RAM Type | LPDDR5X | |
| Storage | 256 GB | 512 GB |
| Storage Type | UFS 4 | UFS 3.1 |
| Card Slot | No | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | 5G FDD Sub6: N1(2100), N2(1900), N3(1800), N5(850), N7(2600), N8(900), N12(700), N20(800), N25(1900), N26(850), N28(700), N66(AWS-3), 5G TDD Sub6: N38(2600), N40(2300), N41(2500), N77(3700), N78(3500) | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Vo5G | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | 802.11a/b/g/n/ac/ax/be 2.4GHz+5GHz+6GHz, EHT320, MIMO, 4096-QAM | |
| Bluetooth | Yes, v6.0 | Yes, v5.2, A2DP, LE |
| USB | Yes, USB-C v3.2 | Yes, USB-C v3.2 |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| Extra | ||
| GPS | Yes with A-GPS, Glonass | Yes, with A-GPS, GLONASS, BDS, GALILEO |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Barometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Proximity Sensor | Accelerometer, Gyro, Proximity, Compass, Barometer |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| AI Features | Galaxy AI, Circle to Search with Google, Photo Assist, Creative Studio, Bixby | |
| Water Resistance | Yes, 1.5 m upto 30 min | Yes, 1.5 m upto 30 min |
| IP Rating | IP68 | IP68 |
| Dust Resistant | Yes | Yes |
| Extra Features | Samsung Care+, Samsung Health, Samsung Wallet, S Pen included, Redesigned Vapor Chamber, UWB (Ultra Wideband), Samsung DeX Support | |
| Camera | ||
| Rear Camera | 200 MP ƒ/1.4 (Wide Angle) 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS 10 MP ƒ/2.4 (Telephoto) 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 50 MP ƒ/2.9 (Telephoto) periscope telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x optical zoom 50 MP ƒ/1.9 (Ultra Wide) (ultrawide), 1/2.5", 0.7µm, dual pixel PDAF, Super Steady vide | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes |
| Features | Optical Zoom 3x and 5x, Optical Quality Zoom 2x and 10x, Digital Zoom up to 100x, Dual Recording, Food, Hyperlapse, Night, Panorama, Photo, Portrait, Portrait Video, Pro, Pro Video, Single Take, Slow Motion, Video | Auto-HDR, Panorama |
| Video Recording | 8K @ 30 fps UHD, 4K, 1080p | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 12 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus, Screen Flash | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus |
| Front Video Recording | 4K @ 60 fps UHD, 1080p @ 60 fps FHD | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v16 | Android v10 |
| Custom UI | ONE UI 8.5 | |
| Chipset | Qualcomm Snapdragon 8 Elite Gen 5 for Galaxy | Samsung Exynos 2100 |
| CPU | 4.74 GHz, Octa Core Processor | 2.9 GHz, Octa Core Processor |
| Core Details | 2x4.74 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 |
| GPU | Adreno 840 | Mali-G78 MP14 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA, DFF, DSF, APE | Yes |
| Video | MP4, M4V, 3GP, 3G2, AVI, FLV, MKV, WEBM | Yes |
| FM Radio | No | No |
| Speaker Type | Dual Stereo | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-ion Battery | 5000 mAh, Li-Po Battery |
| Fast Charging | Yes, 60W Fast Charging | Yes, 25W Fast Charging |
| Wireless Charging | Yes, 25W | Yes, 15W |
| Reverse Charging | Yes | Yes, 4.5W |
| Reverse Wireless Charging | Yes, 4.5W | |
| Video Playback Time | 31 hours | |