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.
Mount Type Recommendations for Galaxy S21 Ultra
MagSafe Magnetic Mount
CompatibleRequires a magnetic case or adhesive magnetic ring since this phone lacks built-in MagSafe magnets.
- + Works with magnetic case add-on
- + Can still wirelessly charge
- - Requires purchasing a magnetic case or ring
- - Weaker hold than native MagSafe
Universal Clamp Mount
RecommendedSpring-loaded clamp mounts that grip phone edges. Your phone is 75.6mm wide (~78.6mm with case).
- + Works with any phone
- + No magnets or special cases needed
- + Usually the most affordable option
- - Requires two hands to dock
- - May block side buttons if clamp is too tight
Exact-Fit Cradle (ProClip)
CompatibleDevice-specific cradle molded to exact phone shape. Most secure but NOT cross-compatible.
- + Most secure hold
- + Custom fit for your exact model
- + Often includes charging
- - Most expensive option
- - Must match exact phone model
- - Not reusable when you upgrade phones
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.