Definition: A display that refreshes 120 times per second. Higher refresh rates make motion look smoother and reduce blur when you scroll, play games, or switch apps. The trade-off is slightly higher power use, though adaptive modes may drop to lower rates to save battery. Most 120 Hz panels also support touch sampling above 120 […]
Definition: Wireless power transfer up to 15 watts using standards like Qi. The phone rests on a charging pad or stand; power moves through coils using electromagnetic induction. Charging speed depends on pad quality, alignment, temperature, and the phone’s thermal limits. Wireless is usually slower and less efficient than a good wired charger, but it […]
Definition: Samsung’s name for 25-watt wired charging that follows USB Power Delivery PPS. The charger and phone negotiate voltage and current in small steps to keep things efficient and cooler. Real charge time varies by battery level and heat. Using a certified 25 W PD PPS adapter typically gives the best results. Example: A 25 […]
Definition: Video captured at roughly 3840×2160 pixels. 4K packs four times the pixels of 1080p, so footage looks sharper on large TVs and monitors. Bitrate, frame rate, stabilization, and codec (H.264 or HEVC) affect quality and file size. Many phones record 4K at 30 fps on the selfie camera and up to 60 fps on […]
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