Samsung Galaxy S24 vs Samsung Galaxy S21 Ultra 5G

SM-S921B, SM-S921B/DS, SM-S921U, SM-S921U1, SM-S921W, SM-S921N, SM-S9210, SM-S921E, SM-S921E/DS

SM-G998B / SM-G998B/DS

2024, January

2021, January

2024, January

2021, January

147 x 70.6 x 7.6 mm (5.79 x 2.78 x 0.30 in)

165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)

167 g or 168 g (5.89 oz)

227 g (Sub6), 229 g (mmWave) (8.01 oz)

Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame IP68 dust/water resistant (up to 1.5m for 30 min) Armor aluminum 2 frame with tougher drop and scratch resistance (advertised)

Glass front (Gorilla Glass Victus), glass back (Gorilla Glass), aluminum frame

Onyx Black, Marble Grey, Cobalt Violet, Amber Yellow, Jade Green, Sandstone Orange, Sapphire Blue

Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown

Yes, Nano-SIM and eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by)

Yes, Single SIM (Nano-SIM and/or eSIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)

6.2 inches, 94.4 cm2 (~90.9% screen-to-body ratio)

6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)

1080 x 2340 pixels

1440 x 3200 pixels

416 ppi density

515 ppi density

Yes

Capacitive Touchscreen

Corning Gorilla Glass Victus 2

Corning Gorilla Glass Victus

120Hz, HDR10+, 2600 nits (peak) Always-on display

2X 120Hz HDR10+ 1500 nits (peak) Always-on display

No

Yes

Triple Cameras

Quad Cameras

50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, Dual Pixel PDAF, OIS

108 MP (2nd gen), f/1.8, 26mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS

10 MP, f/2.4, 67mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom

10 MP, (periscope telephoto), 1/3.2", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom

12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video

10 MP, (telephoto), dual pixel PDAF, OIS, 3x optical zoom

8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 1080p@960fps, HDR10+, stereo sound rec., gyro-EIS

8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS

auto-HDR, panorama

Auto-HDR, panorama

12 MP, f/2.2, 26mm (wide), Dual Pixel PDAF

40 MP, f/2.2, 26mm (wide), 0.7µm, PDAF

Dual video call, Auto-HDR, HDR10+

Dual video call, Auto-HDR

-

12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video

Android 14

Android 11

One UI 6.1

One UI 3.0

Exynos 2400 (4 nm) - International / Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm) - US/Canada

Exynos 2100 (5 nm) - International / Qualcomm SM8350 Snapdragon 888 (5 nm) - USA/China/Korea

Deca-core (1x3.2 GHz Cortex-X4 & 2x2.90 GHz Cortex-A720 & 3x2.60 GHz Cortex-A720 & 4x2.0 GHz Cortex-A520)

Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International / Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 - USA/China/Korea

Xclipse 940 - International / Adreno 750 - US/Canada

Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea

256/512 GB

128/256/512 GB

Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer Ultra Wideband (UWB) support Samsung DeX, Samsung Wireless DeX (desktop experience support)

Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer

5.3, A2DP, LE

5.2, A2DP, LE

Wi-Fi 802.11 a/b/g/n/ac/6e, tri-band, Wi-Fi Direct

Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct

USB Type-C 3.2, OTG

USB Type-C 3.2, USB On-The-Go

GPS, GLONASS, BDS, GALILEO

Yes, with A-GPS, GLONASS, BDS, GALILEO

15W wireless (Qi/PMA) / 4.5W reverse wireless

Yes, Fast Qi/PMA wireless charging 15W / Reverse wireless charging 4.5W

HSPA, LTE-A (up to 7CA), 5G

HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G

Li-Ion (Lithium Ion)

Li-Poly (Lithium Polymer)

4000 mAh, Battery

5000 mAh, Battery

Yes, 25W wired, PD3.0, 50% in 30 min (advertised)

Yes, 25W (USB Power Delivery 3.0)