iPhone 12 Pro vs. Samsung Galaxy S21 Ultra: Which Flagship Still Holds Up in 2024?

The iPhone 12 Pro and Samsung Galaxy S21 Ultra represent distinct philosophies in smartphone design. Released within months of each other, the iPhone 12 Pro offered Apple’s refined ecosystem and computational photography, while the S21 Ultra pushed boundaries with its massive display, versatile camera system, and raw processing power. Now, with both devices seeing price drops, the question arises: which remains the better value and overall experience?
Phones Images

🏆 Quick Verdict

For the average user prioritizing a seamless software experience and strong resale value, the iPhone 12 Pro remains a compelling choice. However, the Samsung Galaxy S21 Ultra’s superior battery life and more versatile camera system, particularly its zoom capabilities, make it the winner for power users and photography enthusiasts.

PHONES
Phone Names Apple iPhone 12 Pro Samsung Galaxy S21 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, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 42, 46, 48, 66, 71 - A23411, 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-G998U1
5G bands1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79, 260, 261 Sub6/mmWave - A23412, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1
SpeedHSPA, LTE, 5G, EV-DO Rev.A 3.1 MbpsHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79 Sub6 - A24061, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B
Launch
Announced2020, October 132021, January 14
StatusAvailable. Released 2020, October 23Available. Released 2021, January 29
Body
BuildGlass front, glass back, stainless steel frameGlass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Dimensions146.7 x 71.5 x 7.4 mm (5.78 x 2.81 x 0.29 in)165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM (China)· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight189 g (6.67 oz)227 g (Sub6), 229 g (mmWave) (8.01 oz)
 IP68 dust/water resistant (up to 6m for 30 min) Apple Pay (Visa, MasterCard, AMEX certified)IP68 dust/water resistant (up to 1.5m for 30 min) Stylus support
Display
ProtectionCeramic Shield glassCorning Gorilla Glass Victus
Resolution1170 x 2532 pixels, 19.5:9 ratio (~460 ppi density)1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Size6.1 inches, 90.2 cm2 (~86.0% screen-to-body ratio)6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)
TypeSuper Retina XDR OLED, HDR10, Dolby Vision, 800 nits (HBM), 1200 nits (peak)Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
 -Always-on display
Platform
CPUHexa-core (2x3.1 GHz Firestorm + 4x1.8 GHz Icestorm)Octa-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/China
ChipsetApple A14 Bionic (5 nm)Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
GPUApple GPU (4-core graphics)Mali-G78 MP14 - InternationalAdreno 660 - USA/China
OSiOS 14.1, upgradable to iOS 26.1Android 11, up to 4 major Android upgrades, One UI 6.1
Memory
Card slotNoNo
Internal128GB 6GB RAM, 256GB 6GB RAM, 512GB 6GB RAM128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
 NVMeUFS 3.1
Main Camera
FeaturesDual-LED dual-tone flash, HDR (photo/panorama)Laser AF, LED flash, auto-HDR, panorama
Quad-108 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
Triple12 MP, f/1.6, 26mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS 12 MP, f/2.0, 52mm (telephoto), 1/3.4", 1.0µm, PDAF, OIS, 2x optical zoom 12 MP, f/2.4, 13mm, 120˚ (ultrawide), 1/3.4", 1.0µm TOF 3D LiDAR scanner (depth)-
Video4K@24/25/30/60fps, 1080p@25/30/60/120/240fps, 10‑bit HDR, Dolby Vision HDR (up to 60fps), stereo sound rec.8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
FeaturesHDRHDR
Single12 MP, f/2.2, 23mm (wide), 1/3.6", 1.0µm SL 3D, (depth/biometrics sensor)40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF
Video4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS4K@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 AKG
Comms
Bluetooth5.0, A2DP, LE5.2, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, QZSSGPS, GLONASS, BDS, GALILEO
RadioNoFM radio (Snapdragon model only; market/operator dependent)
USBLightning, USB 2.0USB Type-C 3.2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, hotspotWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Features
SensorsFace ID, accelerometer, gyro, proximity, compass, barometerFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
 Ultra Wideband (UWB) supportSamsung DeX, Samsung Wireless DeX (desktop experience support) Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) Ultra Wideband (UWB) support
Battery
ChargingWired, PD2.0, 50% in 30 min 15W wireless (MagSafe) 15W wireless (Qi2) - requires iOS 17.4 update25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Ion 2815 mAh (10.78 Wh)Li-Ion 5000 mAh
Misc
ColorsSilver, Graphite, Gold, Pacific BluePhantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
ModelsA2407, A2341, A2406, A2408, iPhone13,3SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
Price$ 277.86 / C$ 419.75 / £ 250.00 / € 299.99$ 240.01 / C$ 353.20 / £ 202.99 / € 264.99
SAR-0.77 W/kg (head)     1.02 W/kg (body)
SAR EU0.99 W/kg (head)     0.99 W/kg (body)0.71 W/kg (head)     1.58 W/kg (body)
Pricing
128GB 12GB RAM-$ 384.99
128GB 6GB RAM$ 725.05-
256GB 12GB RAM-$ 998.00
256GB 6GB RAM$ 575.00-
512GB 12GB RAM-$ 1,179.99
512GB 6GB RAM$ 799.50-
RENEWED$ 499.00$ 459.00
Tests
Battery life Endurance rating 81h Endurance rating 114h
Camera Photo / Video Photo / Video
Display Contrast ratio: Infinite (nominal) Contrast ratio: Infinite (nominal)
Loudspeaker -24.2 LUFS (Very good) -25.5 LUFS (Very good)
Performance AnTuTu: 596244 (v8) GeekBench: 4056 (v5.1) GFXBench: 58fps (ES 3.1 onscreen) AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen)

Apple iPhone 12 Pro

  • Seamless iOS ecosystem integration
  • Excellent build quality and premium design
  • Strong resale value

  • Shorter battery life compared to S21 Ultra
  • Less versatile camera system
  • Limited customization options

Samsung Galaxy S21 Ultra 5G

  • Exceptional battery life
  • Versatile camera system with impressive zoom
  • Larger, brighter display

  • Android software can be less refined than iOS
  • Potential for Exynos overheating (International models)
  • Larger and heavier design

Display Comparison

Both devices boast 'Infinite' contrast ratios, typical of OLED panels. However, the Samsung Galaxy S21 Ultra significantly outshines the iPhone 12 Pro in peak brightness, reaching a measured 1023 nits. This translates to better visibility in direct sunlight. While both offer excellent color accuracy, the S21 Ultra’s larger display and higher brightness provide a more immersive viewing experience. The iPhone 12 Pro’s display, while excellent, is comparatively smaller and less vibrant in outdoor conditions.

Camera Comparison

Both phones excel in photography and video, but approach it differently. The S21 Ultra’s camera system is more versatile, offering a wider range of focal lengths, including dual telephoto lenses for impressive zoom capabilities. While both capture excellent photos and videos, the S21 Ultra’s larger sensors and advanced image processing algorithms provide greater detail and dynamic range, particularly in low-light conditions. The iPhone 12 Pro excels in computational photography, delivering consistently pleasing results with minimal user input, but lacks the zoom reach of the S21 Ultra. The 2MP macro camera on the S21 Ultra is largely superfluous, offering minimal benefit over standard close-up shots.

Performance

The iPhone 12 Pro’s A14 Bionic (5nm) chip and hexa-core CPU deliver impressive performance, but the Galaxy S21 Ultra, depending on the region, utilizes either the Exynos 2100 (5nm) or the Qualcomm Snapdragon 888 (5nm). The Snapdragon 888, found in US/China models, generally offers slightly better sustained performance and thermal management. The S21 Ultra also benefits from 12GB of RAM across all configurations, compared to the iPhone 12 Pro’s 6GB, allowing for more apps to remain active in the background. While the A14 is incredibly efficient, the S21 Ultra’s larger RAM capacity and potentially more powerful chipset give it an edge in multitasking and demanding applications.

Battery Life

The Samsung Galaxy S21 Ultra dominates in battery endurance, achieving an impressive 114-hour rating compared to the iPhone 12 Pro’s 81 hours. This translates to significantly longer real-world usage. The S21 Ultra also supports 25W wired charging with PD3.0, allowing for faster charging speeds than the iPhone 12 Pro’s 20W PD2.0. While both support wireless charging, the S21 Ultra offers 4.5W reverse wireless charging, a feature absent on the iPhone 12 Pro. The iPhone 12 Pro’s MagSafe charging is convenient, but limited to 15W, and requires iOS 17.4 for Qi2 compatibility.

Buying Guide

Buy the Apple iPhone 12 Pro if you need a phone deeply integrated with the Apple ecosystem, prioritize ease of use and long-term software support, and value a compact, premium build quality. Buy the Samsung Galaxy S21 Ultra 5G if you prefer a larger display, demand exceptional battery life, require a more versatile camera system with advanced zoom, and appreciate the customization options of Android.

Frequently Asked Questions

❓ Does the Exynos 2100 chip in the international S21 Ultra overheat during prolonged gaming sessions?
The Exynos 2100 has been known to exhibit more thermal throttling than the Snapdragon 888, particularly during extended gaming. While not a deal-breaker, users may experience slight performance drops after prolonged use. The Snapdragon variant, available in the US and China, generally handles heat more effectively.
❓ Is the 2MP macro camera on the S21 Ultra actually useful, or is it just a marketing gimmick?
The 2MP macro camera on the S21 Ultra offers limited benefits. The low resolution results in images lacking detail, and the fixed focus distance can be challenging to use. Most users will find the standard camera mode capable of taking perfectly acceptable close-up shots.
❓ Does the Samsung Galaxy S21 Ultra support 90fps gameplay in popular titles like PUBG Mobile?
Yes, the Galaxy S21 Ultra supports 90fps gameplay in PUBG Mobile, provided you enable the 'Extreme' graphics setting within the game. This results in a smoother and more responsive gaming experience, taking full advantage of the phone's high refresh rate display.
❓ How does the iPhone 12 Pro's MagSafe ecosystem compare to standard wireless charging?
MagSafe offers a more secure and aligned wireless charging experience compared to standard Qi wireless charging. The magnets ensure optimal charging efficiency and prevent the phone from sliding off the charging pad. However, MagSafe charging is limited to 15W, while standard Qi charging can reach higher wattages with compatible chargers.