Samsung Galaxy S21 Ultra 5G (16GB RAM + 512GB) vs Samsung Galaxy A56 5G
Here you can compare Samsung Galaxy S21 Ultra 5G (16GB RAM … and Samsung Galaxy A56 5G. Comparing Samsung Galaxy S21 Ultra 5G (16GB RAM … vs Samsung Galaxy A56 5G on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Samsung Galaxy S21 Ultra 5G (16GB RAM … stands against Samsung Galaxy A56 5G and which one should you buy The current lowest price found for Samsung Galaxy S21 Ultra 5G (16GB RAM … is ₹1,11,999 and for Samsung Galaxy A56 5G is ₹34,999. The details of both of these products were last updated on Aug 22, 2026.
| Specification | Samsung Galaxy S21 Ultra 5G (16GB RAM … | Samsung Galaxy A56 5G |
|---|---|---|
| OS | Android v10 | Android v15 |
| Battery | 5000 mAh, Li-Po Battery | 5000 mAh |
| Display | 6.8 inches, 1440 x 3200 pixels, 120 Hz | 6.7 inches, 1080 x 2340 pixels, 120 Hz |
| Internal Memory | 512 GB | 128 GB |
| CPU | 2.9 GHz, Octa Core Processor | 2.9 GHz, Octa Core Processor |
| Price | ₹1,11,999 | ₹34,999 |
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Overview
| Specs Score | 83 / 100 Better Specs | 66 / 100 |
| Display Resolution | 1440 x 3200 pixels Better Resolution | 1080 x 2340 pixels |
| RAM | 16 GB More RAM | 8 GB |
| Storage | 512 GB More Storage | 128 GB |
| Rear Camera | 108 MP Quad Better Camera Resolution | 50 MP + 12 MP + 5 MP Triple |
| Front Camera | 40 MP Better Front Camera Resolution | 12 MP |
| Weight | 227 g | 198 g Lighter |
| Thickness | 8.9 mm | 7.4 mm Slimmer |
| Unique Features | Wireless Charging Reverse Charging | No No |
General
| Country of Origin | India | |
| Model | Galaxy S21 Ultra 5G | SM-A566V, SM-A566B, SM-A566B/DS, SM-A566E, SM-A566E/DS, SM-A5660 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | SIM 1 + SIM 2 / SIM 1 + eSIM / Dual eSIM SIM |
| eSIM Support | Yes | |
| Device Type | Smartphone | Smartphone |
| Release Date | January 14, 2021 | March 02, 2025 |
| In The Box | Handset, Data Cable (Type-C to Type-C), Ejection Pin, Quick Start Guide |
Design
| Dimensions | 75.6 x 165.1 x 8.9 mm | 77.5 x 162.2 x 7.4 mm |
| Weight | 227 g | 198 g |
| Colors | Pink, Olive, Graphite, Lightgray |
Display
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color Super AMOLED Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.8 inches, 1440 x 3200 pixels, 120 Hz | 6.7 inches, 1080 x 2340 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 515 PPI | ~ 385 PPI |
| Screen to Body Ratio | ~ 89.8% | ~ 87.4% |
| Glass Type | Corning Gorilla Glass Victus | Corning Gorilla Glass Victus+ |
| HDR Support | Yes, HDR10+ | |
| Features | Always-on Display, HDR10+ | 1200 nits Brightness |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
Memory
| RAM | 16 GB | 8 GB |
| Storage | 512 GB | 128 GB |
| Storage Type | UFS 3.1 |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | FDD Sub6, N1(2100), N3(1800), N5(850), N7(2600), N8(900), N20(800), N28(700), N66(AWS-3), TDD Sub6: N38(2600), N40(2300), N41(2500), N77(3700), N78(3500) | |
| VoLTE | Yes, Dual Stand-By | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | 802.11a/b/g/n/ac/ax 2.4GHz+5GHz, HE80, MIMO, 1024-QAM | |
| Bluetooth | Yes, v5.2, A2DP, LE | Yes, v5.3, A2DP, LE |
| USB | Yes, USB-C v3.2 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging, USB Storage |
Performance
| Camera Score | 114 (DxOMark) |
Extra
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | GPS, Glonass, Beidou, Galileo, QZSS |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Barometer | Accelerometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Virtual Proximity Sensing |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| Water Resistance | Yes, 1.5 m upto 30 min | Yes, 1 m upto 30 min |
| IP Rating | IP68 | IP67 |
| Dust Resistant | Yes | Yes |
| Extra Features | Dual Stereo Speakers, 6 Generations of OS Upgrades and up to 6 Years of Security Updates, Samsung Knox Vault, Awesome Intelligence AI Mobile (Circle to Search Object Eraser, Edit Suggestion, Filters, Auto Trim, Best Face, Al Select, Read Aloud,) |
Camera
| Rear Camera | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) | 50 MP ƒ/1.8 (Wide Angle) 1/1.56", 1.0µm, PDAF, OIS 12 MP ƒ/2.2 (Ultra Wide) 123˚, 1/3.06", 1.12µm 5 MP ƒ/2.4 (Macro) |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes |
| Features | Auto-HDR, Panorama | Best Face, Panorama, HDR |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD | 4K @ 30 fps UHD, 1080p @ 60 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus | 12 MP ƒ/2.2 (Wide Angle) Punch Hole |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | 4K @ 30 fps UHD, 1080p @ 60 fps FHD |
Technical
| OS | Android v10 | Android v15 |
| Custom UI | OneUI 7 | |
| Chipset | Samsung Exynos 2100 | Samsung Exynos 1580 |
| CPU | 2.9 GHz, Octa Core Processor | 2.9 GHz, Octa Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 1x Cortex-A720 @ 2.9GHz & 3x Cortex-A720 @ 2.6GHz & 4x Cortex-A520 @ 1.95GHz |
| GPU | Mali-G78 MP14 | Xclipse 540 |
| Java | No | No |
| Browser | Yes | Yes |
Multimedia
| Yes | Yes | |
| Music | Yes | MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA |
| Video | Yes | MP4, M4V, 3GP, 3G2, AVI, FLV, MKV, WEBM |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 5000 mAh |
| Fast Charging | Yes, 25W Fast Charging | Yes, 45W Fast Charging |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 4.5W | |
| Video Playback Time | 29 hours |
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