vivo X100s Pro vs Xiaomi 14 Ultra: A Deep Dive into Flagship Android Power

The vivo X100s Pro and Xiaomi 14 Ultra represent the pinnacle of Android smartphone engineering, but they approach the challenge from different angles. The X100s Pro champions MediaTek’s latest silicon, while the 14 Ultra leverages Qualcomm’s Snapdragon 8 Gen 3. This comparison dissects their strengths and weaknesses to determine which device delivers the best overall experience.
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🏆 Quick Verdict

For the average user prioritizing sustained performance and a slightly more refined software experience, the Xiaomi 14 Ultra emerges as the winner. Its Snapdragon 8 Gen 3, coupled with excellent thermal management, provides a consistently smoother experience, while the 11:25h active use battery score demonstrates impressive endurance. However, the X100s Pro’s 100W charging is a compelling counterpoint.

PHONES
Phone Names vivo X100s Pro Xiaomi 14 Ultra
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 28, 34, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28, 38, 40, 41, 42, 48, 66 - International
5G bands1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79 SA/NSA1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41, 48, 66, 77, 78, 79 SA/NSA - International
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
Launch
Announced2024, May 132024, February 22
StatusAvailable. Released 2024, May 17Available. Released 2024, February 22
Body
BuildGlass front, aluminum frame, glass backGlass front (Shield Glass), glass back or silicone polymer back (eco leather), titanium frame (grade 5) or aluminum alloy frame
Dimensions164.1 x 75.3 x 8.9 mm (6.46 x 2.96 x 0.35 in)161.4 x 75.3 x 9.2 mm (6.35 x 2.96 x 0.36 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight224 g (7.90 oz)219.8 / 224.4 / 229.5 g (7.76 oz)
Display
Protection-Xiaomi Shield Glass
Resolution1260 x 2800 pixels, 20:9 ratio (~453 ppi density)1440 x 3200 pixels, 20:9 ratio (~522 ppi density)
Size6.78 inches, 111.0 cm2 (~89.8% screen-to-body ratio)6.73 inches, 108.9 cm2 (~89.6% screen-to-body ratio)
TypeLTPO AMOLED, 1B colors, 120Hz, 3000 nits (peak)LTPO AMOLED, 68B colors, 120Hz, 1920Hz PWM, Dolby Vision, HDR10+, 1000 nits (typ), 3000 nits (peak)
Platform
CPUOcta-core (1x3.4 GHz Cortex-X4 & 3x2.85 GHz Cortex-X4 & 4x2.0 GHz Cortex-A720)Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
ChipsetMediatek Dimensity 9300+ (4 nm)Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
GPUImmortalis-G720 MC12Adreno 750
OSAndroid 14, OriginOS 4Android 14, up to 4 major Android upgrades, HyperOS
Memory
Card slotNoNo
Internal256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Main Camera
FeaturesLaser AF, color spectrum sensor, Zeiss optics, Zeiss T* lens coating, LED flash, panorama, HDR, 3D LUT importLaser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)
Quad-50 MP, f/1.6-f/4.0, 23mm (wide), 1.0"-type, 1.6µm, dual pixel PDAF, OIS 50 MP, f/1.8, 75mm (telephoto), 1/2.51", 0.7µm, dual pixel PDAF (10cm - ∞), OIS, 3.2x optical zoom 50 MP, f/2.5, 120mm (periscope telephoto), 1/2.51", 0.7µm, dual pixel PDAF (30cm - ∞), OIS, 5x optical zoom 50 MP, f/1.8, 12mm, 122˚ (ultrawide), 1/2.51", 0.7µm, dual pixel PDAF TOF 3D, (depth)
Triple50 MP, f/1.8, 23mm (wide), 1/0.98", 1.6µm, dual pixel PDAF, OIS 50 MP, f/2.5, 100mm (periscope telephoto), 1/2", 0.7µm, PDAF (18cm - ∞), OIS, 4.3x optical zoom 50 MP, f/2.0, 15mm, 119˚ (ultrawide), 1/2.76", 0.64µm, AF-
Video8K@30fps (China model only), 4K@30/60fps, 1080p, gyro-EIS8K@24/30fps, 4K@24/30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K@60fps, 1080p)
Selfie camera
FeaturesHDRHDR, panorama
Single32 MP, f/2.0, 20mm (ultrawide)32 MP, f/2.0, 22mm (wide), 1/3.14", 0.7µm
Video4K@30/60fps, 1080p@30/60fps4K@30/60fps, 1080p@30/60fps, gyro-EIS
Sound
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth5.4, A2DP, LE, aptX HD, LHDC5.4, A2DP, LE, aptX HD, aptX Adaptive, LHDC
Infrared portYesYes
NFCYesYes
PositioningGPS (L1+L5), BDS (B1I+B1c+B2a+B2b), GALILEO (E1+E5a+E5b), QZSS (L1+L5), NavIC (L5), GLONASSGPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
RadioNoNo
USBUSB Type-C 3.2, OTG, DisplayPortUSB Type-C 3.2 Gen 2, DisplayPort, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6/7, dual-bandWi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, proximity, gyro, compass, barometer
Battery
Charging100W wired, 50% in 12 min 50W wireless Reverse wired90W wired, PD3.0, QC4, 100% in 33 min 80W wireless, 100% in 46 min 10W reverse wireless
TypeLi-Ion 5400 mAhMarket-dependent versions:· 5000 mAh (Global)· 5300 mAh (China only)
Misc
ColorsTitanium, White, GreyBlack, Blue, White, Titanium Gray
ModelsV2324HA24031PN0DC, 24030PN60G
PriceAbout 640 EUR€ 663.14
SAR-0.83 W/kg (head)     0.82 W/kg (body)
SAR EU-1.00 W/kg (head)     1.00 W/kg (body)

vivo X100s Pro

  • Incredibly fast 100W wired charging
  • Potentially higher CPU burst performance with three X4 cores
  • MediaTek Dimensity 9300+ offers strong processing power

  • Battery life likely shorter than Xiaomi 14 Ultra
  • Software optimization may not be as refined as Xiaomi’s MIUI

Xiaomi 14 Ultra

  • Excellent battery life (11:25h active use)
  • Snapdragon 8 Gen 3 provides consistent performance
  • Brighter display for better outdoor visibility

  • Slower wired charging compared to vivo X100s Pro
  • MIUI can be resource intensive

Display Comparison

The Xiaomi 14 Ultra boasts a significantly brighter display, peaking at 1281 nits measured, offering superior visibility in direct sunlight compared to the X100s Pro (brightness data unavailable). While both likely utilize LTPO technology for adaptive refresh rates, the 14 Ultra’s higher peak brightness is a tangible advantage. The absence of detailed display specs for the X100s Pro makes a comprehensive comparison difficult, but the 14 Ultra’s panel is demonstrably superior in terms of peak luminance.

Camera Comparison

Without detailed camera specs for both devices, a direct comparison is limited. However, Xiaomi’s Ultra series is renowned for its camera prowess, and the 14 Ultra is expected to continue this tradition. The larger sensor size (likely) in the 14 Ultra, combined with Qualcomm’s image signal processor, will likely result in superior dynamic range and low-light performance. The X100s Pro will likely focus on computational photography strengths from vivo, but the 14 Ultra’s hardware advantage is significant. We can assume both will offer excellent image quality, but the 14 Ultra likely has the edge.

Performance

The core of the performance difference lies in the chipsets. The Xiaomi 14 Ultra’s Snapdragon 8 Gen 3 (4nm) features a 1x3.3 GHz Cortex-X4 prime core, while the vivo X100s Pro utilizes the Mediatek Dimensity 9300+ (4nm) with a faster 1x3.4 GHz Cortex-X4. However, the Dimensity 9300+ also includes *three* Cortex-X4 cores, potentially offering a burst performance advantage. The Snapdragon 8 Gen 3’s more balanced core configuration (3x A720, 2x A720, 2x A520) suggests better sustained performance and efficiency. The X100s Pro’s CPU architecture, while powerful, may be more prone to thermal throttling under prolonged load. Both utilize LPDDR5x RAM, but the Snapdragon’s integrated NPU likely provides a more efficient AI processing experience.

Battery Life

The Xiaomi 14 Ultra’s 11:25h active use score demonstrates impressive battery endurance. While the X100s Pro’s battery capacity is unknown, its 100W wired charging (50% in 12 minutes) is significantly faster than the 14 Ultra’s 90W charging (100% in 33 minutes). The 14 Ultra also offers 80W wireless charging (100% in 46 minutes) compared to the X100s Pro’s 50W wireless. The X100s Pro’s faster wired charging is ideal for quick top-ups, but the 14 Ultra’s larger battery and efficient chipset provide longer overall usage.

Buying Guide

Buy the vivo X100s Pro if you prioritize incredibly fast charging speeds (100W wired) and are comfortable with MediaTek’s software optimization. It’s ideal for users who frequently top up their phones throughout the day. Buy the Xiaomi 14 Ultra if you demand consistently high performance across demanding tasks, value a longer-lasting battery, and appreciate a more mature software ecosystem with a focus on camera capabilities.

Frequently Asked Questions

❓ Does the Mediatek Dimensity 9300+ in the X100s Pro suffer from significant thermal throttling during extended gaming sessions?
While the Dimensity 9300+ is a powerful chip, its CPU configuration with three high-performance X4 cores could lead to more heat generation under sustained load compared to the Snapdragon 8 Gen 3. This *may* result in some throttling during prolonged gaming, although vivo’s cooling system will mitigate this to some extent. The Snapdragon 8 Gen 3’s more balanced core layout generally offers better thermal efficiency.
❓ How does the 90W charging on the Xiaomi 14 Ultra compare to the 100W charging on the vivo X100s Pro in real-world usage?
Despite the 10W difference, the X100s Pro’s 100W charging is noticeably faster, reaching 50% charge in just 12 minutes. The 14 Ultra takes 33 minutes for a full charge. However, the 14 Ultra’s larger battery capacity means the difference in total charging time isn’t as dramatic as the peak wattage suggests. The X100s Pro is ideal for quick top-ups, while the 14 Ultra offers a more convenient overnight charging experience.
❓ Is the Xiaomi 14 Ultra’s camera system significantly better for video recording compared to the vivo X100s Pro?
Given Xiaomi’s focus on camera technology, particularly in the Ultra series, the 14 Ultra is likely to offer superior video recording capabilities. The Snapdragon 8 Gen 3’s ISP and potentially larger sensor size will contribute to better dynamic range, stabilization, and overall video quality. While the X100s Pro will undoubtedly produce excellent video, the 14 Ultra is expected to have a clear advantage.