Realme GT 7 Pro vs Vivo X300 Ultra

Realme GT 7 Pro

One of the first phones with the Snapdragon 8 Elite, scoring 2.62-2.78 million on AnTuTu — roughly 24% better than the Snapdragon 8 Gen 3. Real-world performance is smooth and multitasking is excellent with best-in-class RAM management. However, the phone gets uncomfortably hot under sustained load, and there's evidence of benchmark manipulation.

• Snapdragon 8 Elite scores 2.62-2.78 million on AnTuTu — approximately 24% faster than SD 8 Gen 3
• Best-in-class RAM management — excellent multitasking with smooth app switching
• Gets uncomfortably hot at 47-48°C during stress tests — aluminum frame conducts heat to hands
• Evidence of benchmark manipulation with "targeted optimizations" detected

Vivo X300 Ultra

Snapdragon 8 Elite Gen 5 plus Vivo's custom imaging silicon delivers flagship benchmark numbers and strong gaming, but the camera-heavy hardware runs hot — sustained stress tests show roughly 60–65% stability and the camera app warms it up fast.

• At the heart is Qualcomm's current flagship Snapdragon 8 Elite Gen 5, supplemented by Vivo's custom VS1 and V3-Plus imaging chips.
• It boots in 16 seconds (vs 21s for the S26 Ultra and 19s for the iPhone 17 Pro Max) and posts an AnTuTu score over 3,800,000, stronger than Samsung.
• In a prolonged stress test it throttled CPU performance to about 60% of peak — in line with other high-powered flagships — and 3DMark stability landed around 63–66%.
• It gets a bit hot after 30–40 minutes of gaming, but with no throttling even past an hour and never uncomfortable to hold; boost mode at max graphics gives around 4 hours of Wuthering Waves on a full charge.
• Native 120fps gaming with smooth/very-high graphics in many titles, with temperature barely crossing 35°C and power draw around 4W in battle-royale modes.
• Under sustained camera/imaging load the front reached ~46.8°C and the back ~45.2°C, and around 47°C the refresh rate drops slightly though not all the way to 60Hz.

Realme GT 7 Pro

Ships with Android 15 and Realme UI 6.0 with integrated AI features. Realme promises 3 OS upgrades and 4 years of security patches, which falls short of Samsung and Google's 7-year commitments. Some users report RAM management bugs and bloatware.

• Android 15 with Realme UI 6.0 and integrated AI features out of the box
• Only 3 OS upgrades and 4 years of security patches — below the new industry standard
• Some users report RAM management bugs with memory error notifications despite ample RAM

Vivo X300 Ultra

Origin OS 6 (Funtouch with full Google services on the global model) is clean and not over-baked with AI, and Vivo now commits to 5 OS upgrades plus 7 years of security patches. The launch software was rough but patched quickly; there's no longer a configurable camera action button.

• Despite being a Chinese device using Google services, you get 5 years of OS updates and 7 years of security updates — a solid, much-improved commitment.
• AI is present across the camera and day-to-day tools, but unlike Samsung you don't have to use AI in every single sense — it's not overbaked to the nth degree.
• Origin OS 6 introduces more transparency in the UI; brands like Vivo and Oppo have changed a lot over the past two years, easing the usual Chinese-variant fears.
• Being the first global launch for a Vivo Ultra there was an early-software rough patch, but an update arrived about 4 days later — the kind of thing Vivo can fix easily via software.
• Disappointingly there's no longer an extra configurable camera button like some previous Vivos and rivals from Oppo and Honor offer — though one reviewer was glad the old, unusable button was removed.
• Vivo's drag-and-drop is genuinely better than Oppo's — you can pick up an item and drop it straight into your most-used apps rather than parking it in a file dock first.