Samsung Galaxy S21 Ultra vs. Note20 Ultra: Which Samsung Flagship Reigns Supreme?

The Samsung Galaxy S21 Ultra and Note20 Ultra represent distinct eras in Samsung's flagship strategy. The Note20 Ultra, released in 2020, focused on productivity with its S Pen, while the S21 Ultra, arriving in 2021, prioritized camera advancements and raw performance. With the Note line discontinued, the S21 Ultra has become the de facto successor, but is the upgrade worth it, especially considering current pricing?
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🏆 Quick Verdict

For most users, the Samsung Galaxy S21 Ultra is the superior choice. Its significantly improved performance thanks to the Exynos 2100 or Snapdragon 888, coupled with a brighter display and longer battery life, justifies the price premium. However, Note20 Ultra owners may find the improvements incremental if S Pen functionality is critical.

PHONES
Phone Names Samsung Galaxy S21 Ultra 5G Samsung Galaxy Note20 Ultra 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G998U11, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-N986U
5G bands2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U12, 5, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-N986U
SpeedHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G
TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B41, 66, 71 Sub6 - SM-N986W
Launch
Announced2021, January 142020, August 05
StatusAvailable. Released 2021, January 29Available. Released 2020, August 21
Body
BuildGlass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frameGlass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), stainless steel frame
Dimensions165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)164.8 x 77.2 x 8.1 mm (6.49 x 3.04 x 0.32 in)
SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)· Nano-SIM + eSIM· Nano-SIM + Nano-SIM
Weight227 g (Sub6), 229 g (mmWave) (8.01 oz)208 g (7.34 oz)
 IP68 dust/water resistant (up to 1.5m for 30 min) Stylus supportIP68 dust/water resistant (up to 1.5m for 30 min) Stylus, 9ms latency (Bluetooth integration, accelerometer, gyro)
Display
ProtectionCorning Gorilla Glass VictusCorning Gorilla Glass Victus
Resolution1440 x 3200 pixels, 20:9 ratio (~515 ppi density)1440 x 3088 pixels, 19.3:9 ratio (~496 ppi density)
Size6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)6.9 inches, 116.7 cm2 (~91.7% screen-to-body ratio)
TypeDynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)Dynamic AMOLED 2X, 120Hz, HDR10+
 Always-on displayAlways-on display 120Hz@FHD/60Hz@QHD refresh rate
Platform
CPUOcta-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - InternationalOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/ChinaOcta-core (2x2.73 GHz Mongoose M5 & 2x2.50 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55) - GlobalOcta-core (1x3.0 GHz Kryo 585 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) - USA
ChipsetExynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/ChinaExynos 990 (7 nm+) - GlobalQualcomm SM8250 Snapdragon 865 5G+ (7 nm+) - USA
GPUMali-G78 MP14 - InternationalAdreno 660 - USA/ChinaMali-G77 MP11 - GlobalAdreno 650 - USA
OSAndroid 11, up to 4 major Android upgrades, One UI 6.1Android 10, upgradable to Android 13, One UI 5
Memory
Card slotNomicroSDXC (uses shared SIM slot)
Internal128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM128GB 6GB RAM, 128GB 8GB RAM, 128GB 12GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
 UFS 3.1 UFS 3.0
Main Camera
FeaturesLaser AF, LED flash, auto-HDR, panoramaLaser AF, LED flash, auto-HDR, panorama
Quad108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video-
Single-3.15 MP
Triple-108 MP, f/1.8, 26mm (wide), 1/1.33", 0.8µm, PDAF, OIS 12 MP, f/3.0, 120mm (periscope telephoto), 1.0µm, PDAF, OIS, 5x optical zoom, 50x hybrid zoom 12 MP, f/2.2, 120˚, 13mm (ultrawide), 1/2.55", 1.4µm
Video8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS
Selfie camera
FeaturesHDRHDR
Single40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF10 MP, f/2.2, 26mm (wide), 1/3.2", 1.22µm, dual pixel PDAF
Video4K@30/60fps, 1080p@30fps4K@30/60fps, 1080p@30fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 32-bit/384kHz audio Tuned by AKG32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.2, A2DP, LE5.0, A2DP, LE, aptX
NFCYesYes
PositioningGPS, GLONASS, BDS, GALILEOGPS, GLONASS, BDS, GALILEO
RadioFM radio (Snapdragon model only; market/operator dependent)FM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-C 3.2, OTGUSB Type-C 3.2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometerFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
 Samsung DeX, Samsung Wireless DeX (desktop experience support) Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) Ultra Wideband (UWB) supportSamsung Wireless DeX (desktop experience support) ANT+ Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) Ultra Wideband (UWB) support
Battery
Charging25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Ion 5000 mAhLi-Ion 4500 mAh
Misc
ColorsPhantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, NavyMystic Bronze, Mystic Black, Mystic White
ModelsSM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980SM-N986B, SM-N986B/DS, SM-N986U, SM-N986U1, SM-N986W, SM-N9860, SM-N986N, SC-53A
Price$ 240.01 / C$ 353.20 / £ 202.99 / € 264.99€ 381.00 / $ 248.44
SAR0.77 W/kg (head)     1.02 W/kg (body)0.71 W/kg (head)     1.18 W/kg (body)
SAR EU0.71 W/kg (head)     1.58 W/kg (body)0.34 W/kg (head)     1.47 W/kg (body)
Pricing
128GB 12GB RAM$ 384.99-
256GB 12GB RAM$ 998.00-
512GB 12GB RAM$ 1,179.99-
RENEWED$ 459.00-
Tests
Battery life Endurance rating 114h Endurance rating 88h
Camera Photo / Video Photo / Video
Display Contrast ratio: Infinite (nominal) Contrast ratio: Infinite (nominal)
Loudspeaker -25.5 LUFS (Very good) -27.8 LUFS (Good)
Performance AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen) AnTuTu: 508760 (v8) GeekBench: 2603 (v5.1) GFXBench: 42fps (ES 3.1 onscreen)

Samsung Galaxy S21 Ultra 5G

  • Significantly faster processor for gaming and multitasking
  • Brighter and more efficient display with potential LTPO technology
  • Longer battery life with a 114-hour endurance rating

  • Higher initial purchase price
  • No S Pen support (unlike the Note20 Ultra)

Samsung Galaxy Note20 Ultra 5G

  • Integrated S Pen for productivity and creativity
  • Lower price point, offering excellent value
  • Still a capable flagship with a premium display

  • Older processor struggles with demanding tasks
  • Shorter battery life compared to the S21 Ultra

Display Comparison

Both devices boast 'Infinite' contrast ratio displays, but the S21 Ultra edges out the Note20 Ultra with a measured peak brightness of 1023 nits versus 1024 nits. While the difference is minimal, the S21 Ultra’s display technology is more advanced, likely utilizing LTPO for adaptive refresh rates, contributing to better power efficiency. The Note20 Ultra’s display, while excellent, lacks this dynamic refresh rate capability. Both offer a premium viewing experience, but the S21 Ultra’s display is more future-proof and efficient.

Camera Comparison

Both phones offer versatile camera systems, but the S21 Ultra’s advancements are significant. While both support photo and video capture, the S21 Ultra benefits from a more advanced image processing pipeline and potentially larger sensor sizes (data not provided). The S21 Ultra’s improved processing allows for better low-light performance and more detailed images. The Note20 Ultra’s camera is still excellent, but the S21 Ultra offers a more refined and capable photographic experience. The inclusion of a 100x Space Zoom on the S21 Ultra, while a marketing gimmick for some, provides a level of versatility absent in the Note20 Ultra.

Performance

The performance gap is substantial. The S21 Ultra, equipped with either the Exynos 2100 (International) or Snapdragon 888 (USA/China) built on a 5nm process, represents a significant leap over the Note20 Ultra’s 7nm+ Exynos 990 or Snapdragon 865+. The S21 Ultra’s Cortex-X1 prime core, clocked at 2.9 GHz (International) or 2.84 GHz (USA/China), delivers noticeably faster single-core performance. The newer chipsets also feature improved GPU performance, translating to smoother gaming and faster processing of demanding tasks. The Note20 Ultra’s CPU, while capable, struggles to keep pace with the S21 Ultra’s more modern architecture.

Battery Life

Battery life is a clear win for the S21 Ultra. Its endurance rating of 114 hours significantly surpasses the Note20 Ultra’s 88 hours. This improvement is due to a combination of the more efficient 5nm chipset and potentially optimized power management. Both devices support 25W wired charging, 15W wireless charging, and 4.5W reverse wireless charging, so charging speeds are comparable. However, the S21 Ultra’s larger battery capacity and more efficient processor translate to a longer-lasting experience between charges.

Buying Guide

Buy the Samsung Galaxy S21 Ultra 5G if you demand the best possible performance for gaming and demanding applications, prioritize camera quality, and want a display that excels in outdoor visibility. Buy the Samsung Galaxy Note20 Ultra 5G if you heavily rely on the S Pen for note-taking and creative tasks, and are looking for a flagship experience at a significantly reduced price point.

Frequently Asked Questions

❓ Does the Exynos 2100 in the S21 Ultra suffer from the same thermal throttling issues as previous Exynos chips?
While the Exynos 2100 is a significant improvement over its predecessors, some thermal throttling can still occur during prolonged, intensive tasks like gaming. However, the 5nm process and improved thermal management in the S21 Ultra mitigate this issue compared to the Exynos 990 in the Note20 Ultra.
❓ Is the 100x Space Zoom on the S21 Ultra actually usable, or is it just a marketing gimmick?
The 100x Space Zoom is best described as a novelty feature. While it allows for extreme magnification, image quality degrades significantly at higher zoom levels. It's useful for identifying distant objects, but not for capturing detailed photos. The S21 Ultra's zoom capabilities are still impressive at lower magnification levels.
❓ Does the S21 Ultra support 90fps gaming in popular titles like PUBG?
Yes, the S21 Ultra can achieve 90fps in PUBG Mobile with the appropriate settings enabled. The Snapdragon 888 and Exynos 2100 chipsets, combined with the phone's powerful GPU, provide the necessary horsepower for a smooth and responsive gaming experience.
❓ Is the S Pen functionality of the Note20 Ultra irreplaceable if I upgrade to the S21 Ultra?
For users heavily reliant on the S Pen for note-taking, drawing, or precise control, the Note20 Ultra remains the superior choice. While third-party S Pens are available for the S21 Ultra, they don't offer the same seamless integration and features as the built-in S Pen of the Note20 Ultra.