vivo X300 vs Xiaomi 14 Pro: A Deep Dive into Flagship Performance and Battery Life

The vivo X300 and Xiaomi 14 Pro represent the cutting edge of Android flagship technology, but they take different approaches. The X300 champions Mediatek’s latest Dimensity 9500 chipset, while the 14 Pro relies on Qualcomm’s Snapdragon 8 Gen 3. This comparison dissects their strengths and weaknesses, helping you determine which device best suits your needs.
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🏆 Quick Verdict

For the average user prioritizing sustained performance and rapid charging, the Xiaomi 14 Pro emerges as the winner. Its Snapdragon 8 Gen 3, coupled with 120W wired charging, offers a more consistently powerful experience. However, the vivo X300’s impressive 52:15h battery endurance is a strong contender for power users.

PHONES
Phone Names vivo X300 Xiaomi 14 Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - InternationalHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 42, 43, 48, 661, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66
5G bands1, 2, 3, 5, 7, 8, 18, 20, 25, 26, 28, 34, 38, 39, 40, 41, 48, 66, 77, 78 SA/NSA/Sub61, 3, 5, 7, 8, 28, 38, 40, 41, 48, 66, 77, 78, 79 SA/NSA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / CDMA2000 / LTE / 5G
Launch
Announced2025, October 132023, October 26
StatusAvailable. Released 2025, October 17Available. Released 2023, November 01
Body
BuildGlass front, aluminum alloy frame, glass backGlass front, aluminum frame or titanium frame, glass back
Dimensions150.6 x 71.9 x 8 mm (5.93 x 2.83 x 0.31 in)161.4 x 75.3 x 8.5 mm
SIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time) - International· Nano-SIM + Nano-SIM - ChinaNano-SIM + Nano-SIM
Weight190 g (6.70 oz)223 g or 230 g (7.87 oz)
Display
ProtectionReinforced Glass, Mohs level 4Shatterproof glass
Resolution1216 x 2640 pixels, 19.5:9 ratio (~460 ppi density)1440 x 3200 pixels, 20:9 ratio (~522 ppi density)
Size6.31 inches, 98.0 cm2 (~90.5% screen-to-body ratio)6.73 inches, 108.9 cm2 (~89.6% screen-to-body ratio)
TypeLTPO AMOLED, 1B colors, 120Hz, 2160Hz PWM, HDR10+, HDR Vivid, 4500 nits (peak)LTPO AMOLED, 68B colors, 120Hz, Dolby Vision, HDR10+, 3000 nits (peak)
Platform
CPUOcta-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
ChipsetMediatek Dimensity 9500 (3 nm)Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
GPUArm G1-UltraAdreno 750
OSAndroid 16, up to 5 major Android upgrades, OriginOS 6Android 14, HyperOS
Memory
Card slotNoNo
Internal256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Main Camera
FeaturesLaser AF, Zeiss optics, Zeiss T* lens coating, LED flash, panorama, HDR, 3D LUT importLaser AF, color spectrum sensor, Leica lens, Dual-LED dual-tone flash, HDR, panorama
Triple200 MP, f/1.7, 23mm (wide), 1/1.4", 0.56µm, PDAF, OIS 50 MP, f/2.6, 70mm (periscope telephoto), 1/1.95", PDAF, OIS, 3x optical zoom 50 MP, f/2.0, 15mm, 119˚ (ultrawide), 1/2.76", 0.64µm, AF50 MP, f/1.4-f/4.0, 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), AF
Video4K@30/60/120fps, 1080p@30/60/120/240fps, gyro-EIS, 4K@120fps HDR8K@24fps (HDR), 4K@24/30/60fps (HDR10+, 10-bit Dolby Vision HDR, 10-bit LOG), 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS
Selfie camera
FeaturesHDRHDR, panorama
Single50 MP, f/2.0, 20mm (wide), 1/2.76", 0.64µm, AF32 MP, f/2.0, 22mm (wide), 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, LHDC 55.4, A2DP, LE, aptX HD, aptX Adaptive
Infrared portYesYes
NFCYesYes
PositioningGPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a+B2b), GALILEO (E1+E5a+E5b), QZSS (L1+L5), NavIC (L5)GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
RadioNoNo
USBUSB Type-C 3.2, OTGUSB Type-C 3.2 Gen 2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6/7, dual-bandWi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, proximity, gyro, compass, barometer
Battery
Charging90W wired 40W wireless Reverse wired120W wired, PD3.0, QC4, 100% in 18 min 50W wireless, 100% in 40 min 10W reverse wireless
Type· Si/C Li-Ion 6040 mAh (Global)· Si/C Li-Ion 5360 mAh (EU markets)Li-Po 4880 mAh
Misc
ColorsPhantom Black, Mist Blue, Summit Red, Iris Purple, Halo PinkBlack, Silver, Titanium, Green
ModelsV2515, V2509A23116PN5BC
PriceAbout 1100 EURAbout 650 EUR
EU LABEL
Battery52:15h endurance, 1200 cycles-
EnergyClass A-
Free fallClass B (180 falls)-
RepairabilityClass C-

vivo X300

  • Exceptional battery endurance (52:15h)
  • Efficient 3nm Dimensity 9500 chipset
  • High peak display brightness (1930 nits)
  • Long-lasting battery health (1200 cycles)

  • Slower charging speeds compared to Xiaomi 14 Pro
  • Potential software optimization lag compared to Qualcomm

Xiaomi 14 Pro

  • Blazing-fast 120W wired charging (18 min to 100%)
  • Powerful Snapdragon 8 Gen 3 chipset
  • Established Qualcomm software ecosystem
  • Faster wireless charging (50W)

  • Likely shorter battery life compared to vivo X300
  • Potential for more thermal throttling under sustained load

Display Comparison

The Xiaomi 14 Pro and vivo X300 both feature premium displays, but the X300 boasts a measured peak brightness of 1930 nits, suggesting a potentially more visible screen in direct sunlight. While both likely employ LTPO technology for adaptive refresh rates (based on flagship standards), the X300’s higher peak brightness is a tangible advantage for outdoor visibility. Details regarding panel type (AMOLED vs. other) and color accuracy are missing, but both are expected to deliver vibrant and accurate visuals.

Camera Comparison

Without detailed camera specifications, a direct comparison is limited. However, both phones are expected to feature advanced camera systems. The Xiaomi 14 Pro, given Xiaomi’s history, likely prioritizes large sensor sizes and computational photography. The X300 may focus on color science and image processing tailored to the Mediatek chipset. The absence of information on sensor resolution, aperture, and optical image stabilization (OIS) makes a definitive judgment impossible, but both are expected to deliver flagship-level image quality.

Performance

The core battle lies in the chipsets. The Xiaomi 14 Pro’s Snapdragon 8 Gen 3 (4nm) is a proven performer, utilizing a Cortex-X4 prime core for peak tasks. The vivo X300’s Dimensity 9500 (3nm) aims to leapfrog Qualcomm with a more efficient node and a unique core configuration – a 1x4.21 GHz C1-Ultra, 3x3.5 GHz C1-Premium, and 4x2.7 GHz C1-Pro. The 3nm process *should* translate to better thermal efficiency for the X300, potentially mitigating throttling during extended gaming. However, Qualcomm’s optimizations and the Snapdragon’s established ecosystem give the 14 Pro an edge in sustained performance and software compatibility. The 14 Pro's CPU architecture, with its Cortex-X4, is designed for higher single-core performance, crucial for responsive UI and app loading.

Battery Life

The vivo X300’s standout feature is its exceptional battery endurance, rated at 52:15 hours. This is significantly higher than typical flagship endurance. While the Xiaomi 14 Pro’s battery capacity is unknown, its 120W wired charging (100% in 18 minutes) is substantially faster than the X300’s 90W charging. The 14 Pro also offers 50W wireless charging (100% in 40 minutes) compared to the X300’s 40W. The X300’s 1200 charge cycles suggest a focus on long-term battery health, while the 14 Pro prioritizes speed and convenience. The X300’s active use score of 17:31h further reinforces its battery prowess.

Buying Guide

Buy the vivo X300 if you prioritize exceptional battery life and value a balanced, efficient chipset. It’s ideal for users who frequently travel or rely heavily on their phone throughout the day. Buy the Xiaomi 14 Pro if you demand the absolute fastest performance, quickest charging speeds, and a more robust software ecosystem, even if it means slightly shorter battery life.

Frequently Asked Questions

❓ Does the Dimensity 9500 in the vivo X300 overheat during prolonged gaming sessions?
The Dimensity 9500’s 3nm process *should* mitigate overheating, but real-world testing is crucial. While the Snapdragon 8 Gen 3 is known for its thermal management, the X300’s efficiency could provide comparable results, especially with optimized software.
❓ How does the 120W charging on the Xiaomi 14 Pro impact long-term battery health?
While 120W charging is incredibly fast, Qualcomm and Xiaomi implement technologies to minimize battery degradation. However, consistently using ultra-fast charging *can* contribute to faster battery wear over several years compared to slower charging methods. The X300's 90W and 1200 charge cycles suggest a focus on longevity.
❓ Is the reverse wireless charging on either phone useful for charging accessories like earbuds?
Both phones offer reverse wireless charging, but at different wattages (Xiaomi 10W, vivo unspecified). While convenient for topping up earbuds or smartwatches, the charging speeds are relatively slow and best suited for emergency situations or overnight trickle charging.