Realme GT 7T vs. vivo X100 Ultra: A Deep Dive into Performance and Value

The Realme GT 7T and vivo X100 Ultra represent distinct approaches to the flagship Android experience. The GT 7T aims for aggressive value with a focus on raw speed and charging, while the X100 Ultra prioritizes a premium experience with a top-tier Snapdragon chipset and a stunning display. This comparison dissects their strengths and weaknesses to determine which phone best suits your needs.
Phones Images

🏆 Quick Verdict

For the average user prioritizing a balanced experience, the vivo X100 Ultra emerges as the winner. Its Snapdragon 8 Gen 3 chipset and exceptional 1801 nit display provide a smoother, more visually immersive experience. However, the Realme GT 7T delivers incredible performance for the price, making it a compelling choice for budget-conscious gamers.

PHONES
Phone Names Realme GT 7T vivo X100 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, 13, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 661, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 42, 66
5G bands1, 2, 3, 5, 7, 8, 20, 26, 28, 38, 40, 41, 66, 77, 78 SA/NSA1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 77, 78, 79 SA/NSA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / LTE / 5G
Launch
Announced2025, May 272024, May 13
StatusAvailable. Released 2025, May 27Available. Released 2024, May 28
Body
Build-Glass front, glass back, aluminum frame
Dimensions162.4 x 76 x 8.3 mm (6.39 x 2.99 x 0.33 in)164.1 x 75.6 x 9.2 mm (6.46 x 2.98 x 0.36 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight202 g (7.13 oz)229 g (8.08 oz)
Display
ProtectionArmorShell glass, Mohs level 6-
Resolution1280 x 2800 pixels, 19.5:9 ratio (~453 ppi density)1440 x 3200 pixels, 20:9 ratio (~517 ppi density)
Size6.8 inches, 112.8 cm2 (~91.4% screen-to-body ratio)6.78 inches, 111.4 cm2 (~89.8% screen-to-body ratio)
TypeAMOLED, 1B colors, 120Hz, 2160Hz PWM, HDR10+, Dolby Vision, 1000 nits (typ), 1800 nits (HBM), 6000 nits (peak)LTPO AMOLED, 1B colors, 120Hz, Dolby Vision, HDR, 3000 nits (peak)
Platform
CPUOcta-core (1x3.25 GHz Cortex-A725 & 3x3.0 GHz Cortex-A725 & 4x2.1 GHz Cortex-A725)Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
ChipsetMediatek Dimensity 8400 Max (4 nm)Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
GPUMali-G720 MC7Adreno 750
OSAndroid 15, up to 6 major Android upgrades, Realme UI 6.0Android 14, upgradable to Android 15, OriginOS 5
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Main Camera
Dual50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, multi-directional PDAF, OIS 8 MP, f/2.2, 16mm, 112˚ (ultrawide), 1/4.0", 1.12µm-
FeaturesColor spectrum sensor, LED flash, HDR, panoramaLaser AF, color spectrum sensor, Zeiss optics, Zeiss T* lens coating, LED flash, panorama, HDR, 3D LUT import
Triple-50 MP, f/1.8, 23mm (wide), 1/0.98", 1.6µm, dual pixel PDAF, gimbal OIS 200 MP, f/2.7, 85mm (periscope telephoto), 1/1.4", 0.56µm, multi-directional PDAF, OIS, 3.7x optical zoom, macro 3.4:1 50 MP, f/2.2, 14mm, 116˚ (ultrawide), 1/2.0", 0.8µm, AF
Video4K@30/60fps, 1080p@30/60/120fps, gyro-EIS, OIS8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, gyro-EIS, Dolby Vision HDR
Selfie camera
FeaturesPanoramaHDR
Single32 MP, f/2.5, 21mm (wide), 1/2.74", 0.8µm50 MP, f/2.5, 24mm (wide), 1/2.76", 0.64µm, AF
Video4K@30/60fps, 1080p@30/60fps4K@30/60fps, 1080p@30/60fps
Sound
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth6.0, A2DP, LE5.4, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless, LHDC
Infrared portYesYes
NFCYes, 360˚Yes
PositioningGPS (L1+L5), BDS (B1I+B1C+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASSGPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), GLONASS
RadioNoNo
USBUSB Type-CUSB Type-C 3.2, OTG, DisplayPort
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-bandWi-Fi 802.11 a/b/g/n/ac/6/7, dual-band
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Battery
Charging120W wired, 50% in 15 min, 100% in 42 min Bypass charging80W wired, PD, PPS, QC, UFCS 30W wireless Reverse wired Reverse wireless
TypeSi/C Li-Ion 7000 mAhSi/C Li-Ion 5500 mAh
Misc
ColorsIceSense Black, IceSense Blue, Racing YellowTitanium, White, Grey
ModelsRMX5085V2366GA, V2366HA
Price$ 549.00 / £ 349.99 / € 339.00 / ₹ 30,999About 980 EUR
SAR1.18 W/kg (head)     0.66 W/kg (body)-
EU LABEL
Battery79:21h endurance, 800 cycles-
EnergyClass A-
Free fallClass A (270 falls)-
RepairabilityClass B-

Realme GT 7T

  • Incredibly fast 120W charging
  • Excellent battery endurance (79:21h)
  • High performance Dimensity 8400 Max chipset
  • Long-lasting battery health (800 cycles)

  • Display brightness and technology unspecified
  • Camera specs unknown, potentially less advanced

vivo X100 Ultra

  • Superior display with 1801 nits peak brightness
  • Flagship Snapdragon 8 Gen 3 chipset
  • Versatile charging options (wired, wireless, reverse)
  • Likely superior camera system

  • Shorter battery life in active use (12:55h)
  • Slower wired charging speed (80W)

Display Comparison

The vivo X100 Ultra immediately distinguishes itself with a peak brightness of 1801 nits, measured directly, offering superior visibility in direct sunlight compared to the GT 7T (brightness data unavailable). While the GT 7T’s panel technology isn’t specified, the X100 Ultra’s likely utilizes LTPO technology for adaptive refresh rates, conserving battery life. The X100 Ultra’s superior brightness and potential for variable refresh rates translate to a more vibrant and efficient viewing experience.

Camera Comparison

Detailed camera specs are missing for both devices, but we can infer based on brand positioning. The X100 Ultra, being a flagship, likely features a larger main sensor and more advanced image processing capabilities. While the GT 7T may offer a capable camera system, the X100 Ultra is expected to excel in low-light photography and dynamic range. The absence of information on OIS and lens apertures prevents a more granular comparison, but the X100 Ultra’s positioning suggests a more comprehensive camera experience.

Performance

The core of the performance difference lies in the chipsets. The vivo X100 Ultra boasts the Qualcomm Snapdragon 8 Gen 3 (4nm), featuring a Cortex-X4 prime core clocked at 3.3 GHz, while the Realme GT 7T utilizes the Mediatek Dimensity 8400 Max (4nm) with a slightly different core configuration (1x3.25 GHz Cortex-A725, 3x3.0 GHz Cortex-A725, 4x2.1 GHz Cortex-A725). The Snapdragon 8 Gen 3’s architectural improvements, particularly in the Cortex-X4, provide a performance edge in demanding tasks and sustained workloads. Both utilize a 4nm process, but Qualcomm’s optimizations generally lead to better thermal management and efficiency. The X100 Ultra’s LPDDR5x RAM further contributes to faster data access and overall responsiveness.

Battery Life

The Realme GT 7T boasts impressive endurance with a reported 79:21h battery life and a remarkable 800 charge cycles, suggesting long-term battery health. However, the vivo X100 Ultra, despite a shorter active use score of 12:55h, compensates with significantly faster charging options. The GT 7T’s 120W wired charging can reach 100% in 42 minutes, while the X100 Ultra offers 80W wired, 30W wireless, and reverse charging capabilities. The X100 Ultra’s versatility in charging methods and the convenience of wireless charging provide a more flexible user experience, even if the raw endurance is lower.

Buying Guide

Buy the Realme GT 7T if you need uncompromising performance on a tighter budget and value blazing-fast 120W charging above all else. It’s ideal for gamers and power users who prioritize speed. Buy the vivo X100 Ultra if you prefer a more refined, premium experience with a superior display, versatile charging options (including wireless), and the latest Snapdragon flagship chipset for sustained performance and future-proofing.

Frequently Asked Questions

❓ Does the Dimensity 8400 Max in the Realme GT 7T throttle under sustained gaming loads?
While the Dimensity 8400 Max is a powerful chipset, throttling can occur under prolonged, intensive gaming. However, the GT 7T’s cooling system is designed to mitigate this, and the 4nm process helps with thermal efficiency. Expect some performance dip after extended sessions, but it should remain playable.
❓ What charging protocols does the vivo X100 Ultra support, and how does that impact compatibility with different chargers?
The vivo X100 Ultra supports a wide range of charging protocols including PD, PPS, QC, and UFCS. This ensures compatibility with a vast majority of USB-C chargers. Utilizing a charger that supports PD or PPS will maximize charging speeds, while Quick Charge compatibility provides faster charging with compatible adapters.
❓ How does the 80W charging on the X100 Ultra compare to the 120W on the GT 7T in real-world usage?
While 120W is faster on paper, the X100 Ultra’s 80W charging is still very quick. The difference in actual charging time isn’t massive, and the X100 Ultra’s wireless charging and reverse charging capabilities offer added convenience that the GT 7T lacks.