Xiaomi 14 vs Samsung Galaxy S24 Ultra: A Deep Dive into Flagship Performance

The Xiaomi 14 and Samsung Galaxy S24 Ultra represent the pinnacle of Android smartphone technology, both powered by the latest Snapdragon 8 Gen 3. However, they diverge in key areas like display technology, charging capabilities, and camera implementation. This comparison dissects these differences to determine which device best suits your needs.
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🏆 Quick Verdict

For the average user prioritizing display quality and a versatile camera system, the Samsung Galaxy S24 Ultra emerges as the winner. While the Xiaomi 14 offers incredibly fast charging and competitive performance, the S24 Ultra’s brighter display and refined software experience provide a more polished overall package.

PHONES
Phone Names Xiaomi 14 Samsung Galaxy S24 Ultra
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 48, 66 - International1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International
5G bands1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 48, 66, 75, 77, 78 SA/NSA - International1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International
SpeedHSPA, LTE, 5GHSPA, LTE (up to 7CA), 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
Launch
Announced2023, October 262024, January 17
StatusAvailable. Released 2023, November 01Available. Released 2024, January 24
Body
BuildGlass front (Gorilla Glass Victus), glass back or silicone polymer back, aluminum frameGlass front (Corning Gorilla Armor), glass back (Corning Gorilla Armor), titanium frame (grade 2)
Dimensions152.8 x 71.5 x 8.2 mm or 8.3 mm162.3 x 79 x 8.6 mm (6.39 x 3.11 x 0.34 in)
SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) - INT· Nano-SIM + eSIM + eSIM (max 2 at a time) - USA· Nano-SIM + Nano-SIM - CN
Weight188 g or 193 g (6.63 oz)232 g or 233 g (8.18 oz)
Display
ProtectionCorning Gorilla Glass VictusCorning Gorilla Armor
Resolution1200 x 2670 pixels, 20:9 ratio (~460 ppi density)1440 x 3120 pixels, 19.5:9 ratio (~505 ppi density)
Size6.36 inches, 97.6 cm2 (~89.3% screen-to-body ratio)6.8 inches, 113.5 cm2 (~88.5% screen-to-body ratio)
TypeLTPO OLED, 68B colors, 120Hz, Dolby Vision, HDR10+, 1000 nits (typ), 3000 nits (peak)Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)
Platform
CPUOcta-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)8-core (1x3.39GHz Cortex-X4 & 3x3.1GHz Cortex-A720 & 2x2.9GHz Cortex-A720 & 2x2.2GHz Cortex-A520)
ChipsetQualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)Qualcomm SM8650-AC Snapdragon 8 Gen 3 (4 nm)
GPUAdreno 750Adreno 750 (1 GHz)
OSAndroid 14, upgradable to Android 15, up to 4 major Android upgrades, HyperOS 1.1Android 14, up to 7 major Android upgrades, One UI 8.0
Memory
Card slotNoNo
Internal256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM
Main Camera
FeaturesLaser AF, color spectrum sensor, Leica lens, Dual-LED dual-tone flash, HDR, panoramaLaser AF, LED flash, auto-HDR, panorama
Quad-200 MP, f/1.7, 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x optical zoom 50 MP, f/3.4, 111mm (periscope telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x optical zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video
Triple50 MP, f/1.6, 23mm (wide), 1/1.31", 1.2µm, dual pixel PDAF, OIS 50 MP, f/2.0, 75mm (telephoto), PDAF (10cm - ∞), OIS, 3.2x optical zoom 50 MP, f/2.2, 14mm, 115˚ (ultrawide)-
Video8K@24fps (HDR), 4K@24/30/60fps (HDR10+, 10-bit Dolby Vision HDR, 10-bit LOG), 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
FeaturesHDR, panoramaHDR, HDR10+
Single32 MP, f/2.0, 22mm (wide), 0.7µm12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF
Video4K@30/60fps, 1080p@30/60fps, gyro-EIS4K@30/60fps, 1080p@30fps
Sound
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth5.4, A2DP, LE, aptX HD, aptX Adaptive, LHDC5.3, A2DP, LE
Infrared portYes-
NFCYesYes
PositioningGPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)GPS, GLONASS, BDS, GALILEO, QZSS
RadioNoNo
USBUSB Type-C 3.2, OTGUSB Type-C 3.2, DisplayPort 1.2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, proximity, gyro, compass, barometerFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Battery
Charging90W wired, PD3.0, QC4, 100% in 31 min 50W wireless, 100% in 46 min 10W reverse wireless45W wired, PD3.0, 65% in 30 min 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Po 4610 mAhLi-Ion 5000 mAh
Misc
ColorsBlack, White, Jade Green, PinkTitanium Black, Titanium Gray, Titanium Violet, Titanium Yellow, Titanium Blue, Titanium Green, Titanium Orange
Models23127PN0CC, 23127PN0CGSM-S928B, SM-S928B/DS, SM-S928U, SM-S928U1, SM-S928W, SM-S928N, SM-S9280, SM-S928E, SM-S928E/DS
Price€ 527.07 / $ 342.37 / ₹ 59,999$ 514.94 / C$ 929.99 / £ 630.00 / € 658.53 / ₹ 84,999
SAR-1.26 W/kg (head)     0.62 W/kg (body)
SAR EU1.00 W/kg (head)     0.99 W/kg (body)1.06 W/kg (head)     1.30 W/kg (body)

Xiaomi 14

  • Incredibly fast 90W wired charging
  • Faster 50W wireless charging
  • Potentially more compact form factor

  • Lower peak display brightness
  • Camera system may not match S24 Ultra's versatility

Samsung Galaxy S24 Ultra

  • Brighter and more vibrant display
  • Superior camera system with advanced features
  • Robust software support and ecosystem

  • Slower 45W wired charging
  • Slower 15W wireless charging
  • Larger and heavier form factor

Display Comparison

The Samsung Galaxy S24 Ultra boasts a significantly brighter display, reaching a measured 1447 nits compared to the Xiaomi 14’s 1175 nits. This translates to superior visibility in direct sunlight. While both utilize advanced panel technology, the S24 Ultra’s higher peak brightness and likely higher contrast ratio provide a more immersive viewing experience. We expect the S24 Ultra to also benefit from Samsung’s industry-leading color accuracy calibration. Bezels are comparable, but the S24 Ultra’s slightly larger screen real estate may appeal to users who consume a lot of media.

Camera Comparison

The context data focuses on the chipsets, but Samsung’s camera prowess is a key differentiator. While the Xiaomi 14 is expected to have a strong camera system, the S24 Ultra’s reputation for image processing and versatile lens options (telephoto, ultrawide) gives it an edge. The S24 Ultra’s larger main sensor (expected, based on previous models) will capture more light, resulting in better low-light performance. The Xiaomi 14 will likely excel in specific scenarios, but the S24 Ultra offers a more consistently excellent camera experience across various shooting conditions. We'll need to see detailed camera samples to fully assess the differences.

Performance

Both devices are equipped with the Qualcomm Snapdragon 8 Gen 3 (4nm), but subtle CPU clock speed differences exist. The S24 Ultra’s CPU peaks at 3.39GHz, slightly higher than the Xiaomi 14’s 3.3 GHz. While this difference is unlikely to be noticeable in most everyday tasks, it could translate to a marginal performance advantage in sustained, CPU-intensive workloads. Both utilize a similar core configuration (1xX4, 3xA720, 2xA720, 2xA520), but the S24 Ultra’s thermal management will be crucial to maintaining peak performance. Both devices likely utilize LPDDR5x RAM, but specific speeds weren't provided.

Battery Life

Battery life is remarkably similar, with both phones achieving around 13:50 hours of active use. However, charging speeds are drastically different. The Xiaomi 14’s 90W wired charging can fully charge the battery in just 31 minutes, while the S24 Ultra’s 45W charging takes approximately 65% in 30 minutes. The Xiaomi 14 also offers significantly faster 50W wireless charging compared to the S24 Ultra’s 15W Qi wireless charging. The Xiaomi 14’s 10W reverse wireless charging is also superior to the S24 Ultra’s 4.5W offering. This makes the Xiaomi 14 the clear winner for users who prioritize quick top-ups.

Buying Guide

Buy the Xiaomi 14 if you prioritize blazing-fast charging speeds (90W wired, 50W wireless) and a more compact flagship experience. It’s ideal for users who frequently top up their phones and value portability. Buy the Samsung Galaxy S24 Ultra if you demand the brightest possible display, a comprehensive camera system with advanced features, and a robust software ecosystem with long-term support. It’s the choice for power users and content creators.

Frequently Asked Questions

❓ Does the Snapdragon 8 Gen 3 in the Xiaomi 14 throttle under sustained load, and how does it compare to the S24 Ultra?
While both phones use the Snapdragon 8 Gen 3, thermal management will be key. The S24 Ultra’s larger chassis and potentially more sophisticated cooling system may allow it to maintain peak performance for longer periods. The Xiaomi 14, being more compact, may experience more throttling during extended gaming sessions or video recording, but real-world testing is needed to confirm the extent of this.
❓ How significant is the difference in charging speed between the Xiaomi 14's 90W and the S24 Ultra's 45W in real-world usage?
The difference is substantial. The Xiaomi 14 can go from 0-100% in 31 minutes, while the S24 Ultra takes considerably longer. For users who frequently need to quickly top up their battery, the Xiaomi 14’s faster charging is a significant advantage. However, for overnight charging, the difference is less critical.
❓ Is the reverse wireless charging on either phone useful for more than just emergencies?
While convenient, reverse wireless charging is generally slow. The Xiaomi 14’s 10W output is more practical than the S24 Ultra’s 4.5W, but neither is ideal for fully charging another device. They are best suited for providing a small boost to accessories like earbuds or smartwatches in a pinch.