This Samsung Galaxy tempered glass screen protector features 9H hardness and blue light filter technology for comprehensive display protection. The case-friendly design leaves a small gap around the edges, so the protector works seamlessly with most phone cases. Available for all major Samsung Galaxy models including S10, S20, S21, Note10, Note20, Ultra and Plus variants. Why a Tempered Glass Screen Protector with Blue Light Filter Protects Your Samsung Galaxy Screen The display on modern Samsung Galaxy phones represents one of the most expensive components to repair. A cracked screen can cost between £150 and £300 to replace, depending on the model. This Samsung galaxy tempered glass screen protector solves that problem by absorbing impact forces that would otherwise transfer to the actual display. As a result, the glass cracks instead of the screen, saving the user significant repair costs. Furthermore, the blue light filter coating reduces exposure to high-energy visible light, which may help reduce eye strain during extended phone use. Many Samsung Galaxy owners in the UK use their phones for several hours each day for work, social media, and entertainment. Similarly, people who work late shifts or use their phone in bed before sleep may benefit from reduced blue light exposure. This Samsung screen protector with blue light filter provides a physical barrier that does not require software settings or night mode toggles. For users who already use a case, the case-friendly design ensures the protector does not lift at the edges when the phone slides in and out of pockets. Consequently, the protector stays in place for months without peeling or collecting dust underneath. 9H Hardness Rating for Scratch and Impact Resistance (Samsung galaxy tempered glass screen protector) The hardness of tempered glass is measured using the Mohs scale, where 9H is the highest rating commonly available for screen protectors. This Samsung galaxy glass screen protector resists scratches from everyday objects such as keys, coins, and pens. A blade or razor will not leave a mark on the surface under normal pressure. The glass also provides impact resistance against drops from waist height onto flat surfaces. While no screen protector can guarantee protection against all drops, the 9H rating indicates the material can absorb and disperse significant force. Blue Light Filter for Reduced Eye Strain Digital eye strain affects many people who spend long hours looking at screens. Symptoms include dry eyes, headaches, and difficulty sleeping after evening phone use. This tempered glass protector includes a blue light filtering layer that blocks a percentage of high-energy visible light in the 380-450nm range. The filter gives the glass a very slight warm tint, which most users find unnoticeable during normal use. Unlike software-based blue light filters that change the entire screen colour dramatically, this physical filter maintains natural colour accuracy while reducing the most harmful wavelengths. This Samsung Galaxy Screen Protector is supplied by Sellertree, a UK-based online seller of practical tech accessories. Case-Friendly Design for Universal Compatibility (Samsung galaxy tempered glass screen protector) Many screen protectors cover the entire front glass of the phone, which causes problems when the user installs a case. The case pushes against the edges of the protector, creating bubbles or lifting the glass entirely. This case-friendly screen protector addresses that problem with a slightly smaller footprint. The protector leaves a 0.5mm to 1mm gap around the entire perimeter of the screen. As a result, any case, from slim silicone to heavy-duty amour, can wrap around the phone edge without contacting the glass. The gap does not affect touch sensitivity or display viewing, because the active screen area remains fully covered. ✅ 9H tempered glass hardness resists scratches from keys, coins, and sharp objects ✅ Blue light filter coating reduces eye strain during extended phone use ✅ Case-friendly design leaves a small gap for compatibility with all phone cases ✅ High transparency maintains original screen brightness and colour accuracy ✅ Oleophobic coating resists fingerprints and smudges ✅ Precise cutouts for front camera, speaker, and sensors for each model ✅ Easy installation kit includes alcohol wipe, dust sticker, and microfiber cloth ✅ Available for S10, S20, S21, Note10, Note20, Ultra, and Plus models (select at checkout) Specifications Feature Detail Compatibility Samsung Galaxy S10, S20, S21, Note10, Note20, Ultra, Plus (select model at checkout) Material Tempered glass Hardness rating 9H (Mohs scale) Blue light filter Yes (built-in coating) Case-friendly Yes (approx 0.5-1mm edge gap) Oleophobic coating Yes (fingerprint resistant) Transparency 99%+ Thickness 0.33mm Installation kit included Alcohol wipe, dust removal sticker, microfiber cloth, instruction manual How to Use Wash hands thoroughly and work in a dust-free environment. Clean the phone screen with the included alcohol wipe. Remove remaining dust using the dust removal sticker. Use the microfiber cloth to dry and polish the screen completely. Peel the backing film from the tempered glass protector. Align the protector with the phone’s edges and camera cutout. Gently lower the protector onto the screen from the center outward. Use a credit card or squeegee to push any air bubbles to the edges.