Samsung Galaxy S21 Ultra 5G vs. HTC Desire 21 Pro 5G: A Comprehensive Comparison

The Samsung Galaxy S21 Ultra 5G represented the pinnacle of Android flagship technology in 2021, boasting a premium price tag to match. The HTC Desire 21 Pro 5G, on the other hand, aimed to deliver 5G connectivity and a modern smartphone experience at a significantly lower cost. This comparison dissects the key differences between these two devices, helping you determine which best suits your needs and budget.
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🏆 Quick Verdict

For most users, the Samsung Galaxy S21 Ultra 5G is the superior device, offering a dramatically better display, significantly more powerful processor, and a more versatile camera system. However, the HTC Desire 21 Pro 5G presents a compelling value proposition for those prioritizing 5G access and basic smartphone functionality on a tight budget.

PHONES
Phone Names HTC Desire 21 Pro 5G 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, 3, 5, 7, 8, 20, 28, 38, 39, 40, 411, 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, 3, 5, 7, 28, 41, 78 SA/NSA2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1
SpeedHSPA, LTE, 5GHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 -1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B
Launch
Announced2021, January 132021, January 14
StatusAvailable. Released 2021, January 21Available. Released 2021, January 29
Body
Build-Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Dimensions167.1 x 78.1 x 9.4 mm (6.58 x 3.07 x 0.37 in)165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
SIMNano-SIM + Nano-SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight205 g (7.23 oz)227 g (Sub6), 229 g (mmWave) (8.01 oz)
 -IP68 dust/water resistant (up to 1.5m for 30 min) Stylus support
Display
Protection-Corning Gorilla Glass Victus
Resolution1080 x 2400 pixels, 20:9 ratio (~393 ppi density)1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Size6.7 inches, 108.4 cm2 (~83.0% screen-to-body ratio)6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)
TypeIPS LCD, HDR10, 90HzDynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
 -Always-on display
Platform
CPUOcta-core (2x2.0 GHz Kryo 560 Gold & 6x1.7 GHz Kryo 560 Silver)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
ChipsetQualcomm SM6350 Snapdragon 690 5G (8 nm)Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
GPUAdreno 619Mali-G78 MP14 - InternationalAdreno 660 - USA/China
OSAndroid 10Android 11, up to 4 major Android upgrades, One UI 6.1
Memory
Card slotmicroSDXC (uses shared SIM slot)No
Internal128GB 8GB RAM128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
 -UFS 3.1
Main Camera
FeaturesDual-LED flash, HDR, panoramaLaser AF, LED flash, auto-HDR, panorama
Quad48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 118˚ (ultrawide) 2 MP (macro) Auxiliary lens108 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
Video4K@30fps, 1080p@30fps, gyro-EIS8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
FeaturesHDRHDR
Single16 MP, (wide)40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF
Video1080p@30fps4K@30/60fps, 1080p@30fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes, with stereo speakers
 -32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.1, A2DP, LE5.2, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, BDS, GALILEO
RadioNoFM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-C 2.0, OTGUSB Type-C 3.2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (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) support
Battery
Charging18W wired, QC425W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Po 5000 mAhLi-Ion 5000 mAh
Misc
ColorsBlue, PurplePhantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
Models-SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
PriceAbout 350 EUR$ 240.01 / C$ 353.20 / £ 202.99 / € 264.99
SAR-0.77 W/kg (head)     1.02 W/kg (body)
SAR EU-0.71 W/kg (head)     1.58 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
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -25.5 LUFS (Very good)
Performance- AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen)

HTC Desire 21 Pro 5G

  • Affordable 5G connectivity
  • Decent battery life for basic use
  • Functional smartphone experience

  • Significantly weaker processor
  • Inferior camera system
  • Lower quality display

Samsung Galaxy S21 Ultra 5G

  • Exceptional display quality and brightness
  • Powerful processor for demanding tasks
  • Versatile and high-quality camera system
  • Fast and versatile charging options

  • High price point
  • Potential for thermal throttling under heavy load (Exynos variant)
  • Large and heavy design

Display Comparison

The Samsung Galaxy S21 Ultra 5G features a demonstrably superior display, reaching a measured peak brightness of 1023 nits. This contrasts sharply with the likely lower brightness of the Desire 21 Pro 5G, typical for its price bracket. While the Desire 21 Pro 5G’s display specs are not provided, the S21 Ultra’s ‘Infinite’ contrast ratio suggests a VA-type panel, delivering deep blacks. The S21 Ultra likely utilizes an LTPO panel for adaptive refresh rates, conserving battery life, a feature absent in the Desire 21 Pro 5G.

Camera Comparison

The Samsung Galaxy S21 Ultra 5G’s camera system is in a different league. While both phones are listed as having 'Photo / Video' capabilities, the S21 Ultra’s sensor size, lens apertures, and image processing algorithms are far more advanced. The S21 Ultra’s camera system likely includes features like 8K video recording and advanced zoom capabilities. The Desire 21 Pro 5G likely relies on software processing to compensate for its less capable hardware. The presence of a 2MP macro camera on the Desire 21 Pro 5G is likely a marketing tactic, offering limited real-world benefit compared to the S21 Ultra’s more sophisticated camera setup.

Performance

The performance gap between these devices is substantial. The Samsung Galaxy S21 Ultra 5G, equipped with either the Exynos 2100 (international) or Snapdragon 888 5G (USA/China) built on a 5nm process, offers significantly more processing power than the HTC Desire 21 Pro 5G’s Snapdragon 690 5G (8nm). The S21 Ultra’s CPU configuration – a Cortex-X1 prime core alongside Cortex-A78 and A55 cores – provides a substantial advantage in both single-core and multi-core performance. The Snapdragon 690, while capable, is geared towards efficiency and mid-range tasks. The S21 Ultra’s LPDDR5 RAM (likely) further enhances performance compared to the Desire 21 Pro 5G’s RAM specification, which is not provided.

Battery Life

Both devices offer comparable endurance ratings, with the S21 Ultra achieving 114 hours. However, this doesn’t tell the whole story. The S21 Ultra’s 25W wired charging with PD3.0 and 15W wireless charging provide significantly faster and more versatile charging options than the Desire 21 Pro 5G’s 18W wired charging with QC4. The S21 Ultra also offers 4.5W reverse wireless charging, a feature absent on the Desire 21 Pro 5G. The S21 Ultra’s more efficient processor and potentially larger battery capacity contribute to its overall endurance despite the faster charging speeds.

Buying Guide

Buy the HTC Desire 21 Pro 5G if you need a functional 5G smartphone for essential tasks like calling, texting, and light social media use, and are unwilling to spend over $400. Buy the Samsung Galaxy S21 Ultra 5G if you demand a top-tier mobile experience with a stunning display, exceptional camera capabilities, and the processing power to handle demanding applications and games.

Frequently Asked Questions

❓ Does the Exynos 2100 chip in the S21 Ultra overheat during prolonged gaming sessions?
The Exynos 2100 variant of the S21 Ultra has been reported to experience more thermal throttling than the Snapdragon 888 version during extended gaming. However, Samsung implemented software optimizations to mitigate this issue, and the phone generally remains usable, albeit with some performance reduction.
❓ Is the 2MP macro camera on the HTC Desire 21 Pro 5G actually useful for taking detailed close-up photos?
The 2MP macro camera on the Desire 21 Pro 5G is largely a marketing feature. Due to its low resolution and lack of optical image stabilization, the resulting images often lack detail and clarity. It's unlikely to provide a significant improvement over using the main camera in close-up mode.
❓ Can the Samsung Galaxy S21 Ultra 5G reliably maintain 60fps in demanding games like PUBG Mobile at maximum settings?
Yes, the S21 Ultra 5G, regardless of the chipset, can reliably maintain 60fps in PUBG Mobile at maximum settings. The powerful processor and ample RAM ensure a smooth and responsive gaming experience. Some users have reported the ability to push frame rates even higher with custom settings.
❓ What kind of 5G bands does the HTC Desire 21 Pro 5G support, and will it work with my carrier?
The HTC Desire 21 Pro 5G supports a range of 5G bands, but compatibility varies by region and carrier. It's crucial to check with your carrier to ensure the phone supports the specific 5G frequencies they use in your area before purchasing.