Meizu 18 vs. Samsung Galaxy S21 Ultra 5G: A Detailed Comparison

The Meizu 18 and Samsung Galaxy S21 Ultra 5G represent contrasting philosophies in the flagship smartphone space. The Meizu 18 prioritizes a compact form factor and streamlined experience, while the S21 Ultra aims for maximum features and a premium, all-encompassing package. This comparison dissects their core components to determine which device best suits your needs, especially considering the S21 Ultra's significant price drops since launch.
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🏆 Quick Verdict

For most users, the Samsung Galaxy S21 Ultra 5G offers a more compelling package. Its superior display brightness, versatile camera system, and wider availability outweigh the Meizu 18’s compact size and potentially faster charging. However, users prioritizing a smaller phone and a cleaner software experience may find the Meizu 18 a better fit.

PHONES
Phone Names Meizu 18 Samsung Galaxy S21 Ultra 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 4, 5, 7, 8, 34, 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, 41, 77, 78, 79 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, March 03. Released 2021, March 082021, January 14
StatusDiscontinuedAvailable. Released 2021, January 29
Body
Build-Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Dimensions152.4 x 69.2 x 8.2 mm (6.00 x 2.72 x 0.32 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)
Weight162 g (5.71 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
Resolution1440 x 3200 pixels, 20:9 ratio (~563 ppi density)1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Size6.2 inches, 93.8 cm2 (~88.9% screen-to-body ratio)6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)
TypeSuper AMOLED, 120Hz, HDR10+, 420 nits (typ), 1300 nits (peak)Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
 -Always-on display
Platform
CPUOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)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 SM8350 Snapdragon 888 5G (5 nm)Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
GPUAdreno 660Mali-G78 MP14 - InternationalAdreno 660 - USA/China
OSAndroid 11, Flyme 9Android 11, up to 4 major Android upgrades, One UI 6.1
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
 UFS 3.1UFS 3.1
Main Camera
FeaturesDual-LED dual-tone flash, HDR, panoramaLaser 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
Triple64 MP, f/1.6, 26mm (wide), 1/1.73", 0.8µm, PDAF, OIS 8 MP f/2.4, 79mm (telephoto), 1/4.4", 1.0µm, PDAF, 3x optical zoom 16 MP, f/2.2, 15mm, 122˚ (ultrawide), 1/3.0", 1.0µm-
Video4K@30/60fps, 1080p; gyro-EIS8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
FeaturesHDRHDR
Single20 MP, f/2.2, 26mm (wide), 1/3.4", 0.8µm40 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 Yes, with stereo speakersYes, with stereo speakers
 -32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.2, A2DP, LE5.2, A2DP, LE
NFCYesYes
PositioningGPS (L1+L5), GLONASS, BDS, GALILEO, QZSS, NavICGPS, GLONASS, BDS, GALILEO
RadioNoFM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-CUSB Type-C 3.2, OTG
WLANWi-Fi 802.11 а/b/g/n/ac/6e, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, ultrasonic), 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
Charging36W wired, PD3.0, QC3, 40% in 15 min, 100% in 50 min25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Po 4000 mAhLi-Ion 5000 mAh
Misc
ColorsLight Blue, White, AuroraPhantom 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 560 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)

Meizu 18

  • Compact and pocketable design
  • Faster 36W wired charging
  • Potentially cleaner software experience

  • Limited camera information
  • Less readily available internationally

Samsung Galaxy S21 Ultra 5G

  • Brighter and larger display
  • Versatile camera system
  • Wider availability and price range

  • Larger and heavier form factor
  • Slower 25W wired charging
  • Potential for Exynos throttling (International models)

Display Comparison

The Samsung Galaxy S21 Ultra boasts a significantly brighter display, reaching a measured 1023 nits, compared to the Meizu 18’s unspecified peak brightness. This difference is crucial for outdoor visibility. While both likely utilize AMOLED technology, the S21 Ultra’s larger size and higher peak brightness provide a more immersive viewing experience. The S21 Ultra’s ‘Infinite’ contrast ratio (nominal) suggests a superior black level performance, enhancing dynamic range. The Meizu 18’s display specs are less detailed, making a direct comparison of color accuracy and other parameters difficult.

Camera Comparison

The S21 Ultra’s camera system is far more comprehensive, though specifics beyond 'Photo / Video' are missing. It’s reasonable to assume a multi-lens setup with a high-resolution main sensor and advanced features like Space Zoom. The Meizu 18’s camera details are entirely absent, making a direct comparison impossible. Given Meizu’s history, it likely focuses on image quality over sheer feature count. The S21 Ultra’s OIS (Optical Image Stabilization) is a significant advantage for video recording and low-light photography, a feature likely present but unconfirmed on the Meizu 18.

Performance

Both phones utilize the Qualcomm Snapdragon 888 5G chipset in certain regions (USA/China for both). However, the international S21 Ultra uses the Exynos 2100. While both are 5nm chips, the S21 Ultra’s Cortex-X1 core clocks slightly higher at 2.9 GHz versus the Meizu 18’s 2.84 GHz. The S21 Ultra’s 12GB RAM options are more readily available and at varying price points ($384.99 - $1,179.99), while the Meizu 18’s RAM configuration is not specified in the provided data. The Exynos 2100 has historically faced thermal throttling concerns under sustained load, potentially giving the Snapdragon 888-equipped S21 Ultra and the Meizu 18 an edge in prolonged gaming sessions.

Battery Life

Both devices share an endurance rating of 114 hours, suggesting comparable real-world battery life despite differing battery capacities (unspecified for the Meizu 18). However, the Meizu 18 offers significantly faster wired charging at 36W with PD3.0 and QC3, achieving 40% charge in 15 minutes and 100% in 50 minutes. The S21 Ultra is limited to 25W wired charging, taking considerably longer to fully charge. The S21 Ultra also includes 15W wireless charging and 4.5W reverse wireless charging, features absent in the provided Meizu 18 specifications.

Buying Guide

Buy the Meizu 18 if you need a truly pocketable flagship with a focus on core functionality and a less bloated software experience. It’s ideal for users who dislike large phones and prefer a more minimalist approach. Buy the Samsung Galaxy S21 Ultra 5G if you prefer a large, feature-rich device with a stunning display, a highly versatile camera system, and don't mind a more complex software experience. It’s best for power users, photography enthusiasts, and those who consume a lot of media.

Frequently Asked Questions

❓ Does the Exynos 2100 in the international S21 Ultra suffer from overheating during demanding tasks like gaming?
The Exynos 2100 has been known to exhibit thermal throttling under sustained load, potentially leading to reduced performance during extended gaming sessions or video recording. While Samsung implemented software optimizations, the Snapdragon 888 variant generally offers better thermal efficiency.
❓ Is the Meizu 18’s smaller size a significant advantage for one-handed use?
Yes, the Meizu 18’s compact form factor makes it considerably easier to operate with one hand compared to the larger S21 Ultra. This is a key benefit for users who prioritize portability and ease of use.
❓ How does the charging speed of the Meizu 18 compare to real-world usage scenarios?
The Meizu 18’s 36W charging allows for a 40% charge in just 15 minutes, which is ideal for quickly topping up the battery during short breaks. A full charge in 50 minutes is also competitive, offering a convenient charging experience.
❓ What software experience can I expect on the Meizu 18 compared to Samsung's One UI?
Meizu’s Flyme OS is known for its minimalist design and focus on core functionality. It generally offers a cleaner and less cluttered experience compared to Samsung’s One UI, which is packed with features and customization options.