ZAGG InvisibleShield (GlassFusion+) Hybrid Glass for Galaxy S21 Ultra 5G - Clear
$9.95 reg $29.99
Sale save $20.04 (67% off)
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Sold & shipped by Simple Cell, Inc
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The Zagg Invisible Shield GlassFusion screen protector offers a unique blend of glass and plastic, providing a sleek and minimalistic design that appeals to those seeking protection without bulk. Many guests appreciate its durability and the clarity it brings to their devices. However, some have experienced issues with bubbles and adhesion, particularly on curved screens. Overall, it stands out for its protective qualities and ease of application, making it a popular choice for guests looking to safeguard their devices.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
3.3 out of 5 stars with 893 reviews
5 out of 5 stars
8 May, 2026
originally posted on zagg
GlassFusion+ Screen Protector Apple Watch
If this works as well as the Zagg screen protector for my iPhone, which has fallen on concrete several times and still has no scratches, this GlassFusion+ Screen Protector for Apple Watch will prove to be a worthwhile investment!
1 out of 5 stars
20 February, 2026
originally posted on zagg
Mr
My invisible shield did not work. I had bubbles under all four corners.
1 reply from ZAGG team - 3 months ago
We appreciate your feedback, as we are always trying to improve our products and customers experience. To replace your InvisibleShield under warranty please visit support.zagg.com or give our customer care team a call at 800-700-9244.
1 out of 5 stars
9 February, 2026
originally posted on zagg
Don’t buy!!
Bad product doesn’t wet out. Took off and tossed it away.
1 reply from ZAGG team - 3 months ago
We appreciate your feedback, as we are always trying to improve our products. We hope you'll give us another try!
5 out of 5 stars
23 January, 2026
originally posted on zagg
Best simple screen protector yet...
I am a minimalist, which is why I purchased a 40mm Apple Watch. Since my priority is a small, sleek watch, the last thing I want is a big, bulky screen protector or bumper shroud. I have been on a quest to find the most minimal screen protector that provides maximum protection. Initially, I found a well-fitting, inexpensive glass protector I liked, but it was so fragile that I shattered four in a month and a half. I then found an expensive, VERY sturdy plastic screen protector, but it was too thick, with rough edges, and peeled off in the first week. After finally finding and using the InvisibleShield (it's in the name!) GlassFusion+ screen protector, I have realized it's the perfect FUSION (pun intended) of the two aforementioned protectors. It is the perfect fit, with tapered edges that so far haven't caught on anything, and is a mix of glass and plastic, which leads me to assume it is less likely to shatter.
3 out of 5 stars
20 September, 2025
originally posted on zagg
Glass screen protector
I’ve tried other screen protectors and they always pop off and zag has stayed on since I’ve put it on my watch
2 out of 5 stars
30 June, 2025
originally posted on zagg
NOT HAPPY WITH SHIELD
I really think the quality of this item is subpar. I had the original InvisbleShield when Apple watch first came out, the shield was glass like for the phones, now they are this flimsy plastic. They really don't stick well, even following the directions to a T. Not a lot of choices out there. I bought the more expensive Shield because the one I needed to replace was not in stock, for months. I was expecting a better quality Shield and it wasn't any different than the one I removed, and it cost $20.00 more. Not happy with this item.
4 out of 5 stars
12 June, 2025
originally posted on zagg
Made my phone look new
So far so good, was hoping for something a little more glass like. As long as it protects my screen and they warranty like they have in the past for me, I will have no concerns.
3 out of 5 stars
26 May, 2025
originally posted on zagg
ZAGG always the best but…
Excellent product, installation remains challenging-guide holes don’t match phone!
3 out of 5 stars
2 May, 2025
originally posted on zagg
Bubbles
They say it is easy to install but the directions are not as clear as they make it and the bubbles do not press out easily. I prefer the old solid glass protectors that are rigid..
1 out of 5 stars
14 April, 2025
originally posted on zagg
Poor design
Can not get the bubbles to go away. Get them all pushed out and they are all back within seconds.
4 out of 5 stars
2 April, 2025
originally posted on zagg
its good, not great.
its good, not great. Smudges easily, needs to be cleaned often.
3 out of 5 stars
19 March, 2025
originally posted on zagg
Not great, but better than not having one.
Not as easy to install as other zagg products I have used. WIll try different protector next time.
2 out of 5 stars
21 December, 2024
originally posted on zagg
Not happy
Didn't adhere on the sides. I have used Zagg for years and this is the 1st time I'm disappointed.
1 reply from ZAGG team - 1 year ago
We are sorry to hear you have experienced an issue with your InvisibleShield. We want to make this right for you. Please contact our customer care team at 800-700-9244. They’ll be able to assist you promptly and resolve the issue.
5 out of 5 stars
21 December, 2024
originally posted on zagg
Go get it
Good quality screen protector. Im a dropsie person, and it hold well for me.
5 out of 5 stars
1 November, 2024
originally posted on zagg
Great purchase
My cellphone is clear n back to normal! Also protected from damaging.
4 out of 5 stars
25 October, 2024
originally posted on zagg
Great product
It is easy to apply, just difficult to get it perfectly centered up even with the guide. Beyond that it is great and taking a beating every day like a champ
5 out of 5 stars
9 October, 2024
originally posted on zagg
Apple Watch Screen Saver
Always a good product for the price. Helpful support time.
5 out of 5 stars
29 September, 2024
originally posted on zagg
Glass Fusion
Love these shields . Easy ti order and looks great.
5 out of 5 stars
21 August, 2024
originally posted on zagg
Zagg, glass fussing is great.
I am hard on phone screens but since I've been using Zagg Glass fusion I've no even cracked, chipped nor broken a screen. And Zagg stands behind there warranty, no hassle, just register your product after purchase. Best screen protector out there, my true feelings.
3 out of 5 stars
5 July, 2023
originally posted on zagg
Air bubbles
Had screen protector on watch for about a month, no issues. Spent a day at the beach, bubbles developed under the screen.