Best Car Mounts & Phone Holders for Galaxy S21 Ultra
Galaxy S21 Ultra Dimensions
Width
75.6mm
Width with Case
~78.6mm
Height
165.1mm
Weight
227g
Size Category
Standard
MagSafe
No
The Galaxy S21 Ultra at 75.6mm wide (about 78.6mm with a case) fits most standard car mounts without issue.
What Type of Car Mount Should I Get?
Clamp/Grip Mounts
Universal clamp mounts grip your phone by the sides. Make sure the mount supports phones at least 78.6mm wide to fit with a case.
Vent Mounts
Clip onto your car's air vents. Lightweight and compact. Good for phones under — though your phone is heavier, so ensure the vent clip is sturdy.
Dashboard / Windshield Mounts
Stick to your dashboard with adhesive or suction cup. Most stable option, ideal for GPS/navigation.
Recommended Car Mounts for Galaxy S21 Ultra
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Frequently Asked Questions
Will Galaxy S21 Ultra fit in a car phone mount?
Yes, the Galaxy S21 Ultra at 75.6mm wide fits most standard car mounts.
Does Galaxy S21 Ultra work with MagSafe car mounts?
No built-in MagSafe. Use a clamp mount or add a MagSafe ring adapter for magnetic mounts.
What size phone mount do I need for Galaxy S21 Ultra?
The Galaxy S21 Ultra is 75.6mm wide (~78.6mm with a case). Choose a mount rated for at least 80mm.