Phone Gimbal Fit Checker

A phone gimbal compatibility checker tells you whether your phone fits a gimbal before you buy. Enter your phone’s width, thickness and weight with its case, plus any lens or add-on. Then enter the gimbal’s clamp range, thickness limit and rated payload. The checker returns FIT or NO FIT and names each problem.

1. Pick your units. Lengths can be millimeters or inches, and weights can be grams or ounces. Switching units converts any values you’ve already typed.
2. Put your phone in the case you film with. Measure its width across the short side and its thickness at the thickest point, including any camera bump. A ruler works, and a caliper is more precise.
3. Weigh the phone in its case on a kitchen or postal scale. Weigh any clip-on lens, light or other add-on separately and enter it as the accessory weight. Leave that field blank if you use none.
4. Open the gimbal maker’s spec sheet. Enter the minimum and maximum compatible phone width and the rated payload, which is the maximum compatible phone weight. If the sheet lists a maximum phone thickness, enter that too.
5. Press Check fit. Each check shows pass or fail as text and an icon, with the margin or overage. A NO FIT verdict names every check that failed.

Every value is converted to millimeters and grams, using 1 in = 25.4 mm and 1 oz = 28.3495 g. Values are rounded to 0.1 before comparing. Every limit is inclusive, so a value exactly equal to a limit passes.

• Clamp width: passes if clamp minimum ≤ phone width with case ≤ clamp maximum. The result shows the margin to the nearest limit, or how far the phone falls outside the range.
• Thickness: passes if phone thickness with case ≤ maximum phone thickness. This check runs only when you enter a limit. Otherwise it reads “Not checked.”
• Payload: total weight = phone weight with case + accessory weight. It passes if the total weight ≤ rated payload. Headroom = rated payload − total weight.
• Verdict: FIT if every check that ran passes. NO FIT if any check fails. If thickness was skipped, the result reads “Fit on checks run; thickness not checked.”

Here is an example only. The gimbal limits come from DJI’s published Osmo Mobile 8 specs (width 67–84 mm, thickness 6.9–10 mm, phone weight 170–300 g). The phone figures are hypothetical.

Phone makers list dimensions and weight for the bare phone. A case adds width and thickness, and a rugged or wallet case can push a phone past a clamp’s maximum or a thickness limit. Add-ons work the same way on weight. A clip-on lens, light or magnetic mount adds grams that count against the rated payload. That’s why the checker asks for measurements with the case on and adds accessory weight to the total.

On a spec sheet, the clamp range usually appears as “compatible phone width.” Rated payload appears as “compatible phone weight,” and some sheets add a “compatible phone thickness.” Some makers also give a minimum weight or thickness. This checker tests the maximum payload and maximum thickness only, so read the sheet for any minimums. A payload rating also may not account for extension rods, balancing or off-centre accessories. Treat a pass with very little headroom as a reason to check the details, not as a guarantee.

The checker runs the three comparisons above entirely in your browser. Nothing you enter is stored or sent anywhere. It has no built-in gimbal or phone data, so the result is only as accurate as the numbers you enter. It doesn’t test balance, motor strength or real-world performance.

• Wikipedia: Inch: 1 inch is defined as exactly 25.4 mm.
• Wikipedia: Ounce: 1 ounce is exactly 28.349523125 g.
• DJI Osmo Mobile 8 specs: the source of the example limits above.
• Your gimbal’s manufacturer spec sheet: the source for the clamp range, thickness limit and rated payload you enter.

Last updated: October 2026

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