I'm planning to get a larger card with a speed up to 95mb, but I wonder if it supports 128gb card at all?

The Osmo support Micro SD up to 64Gb, same as the Inspire 1's X3 camera and the Phantom 3 camera. I'm sure I read somewhere that someone did try a 128Gb card in an Inspire 1 and it worked, take that with a bucketload of skepticism as I have only seen reference to it once..
Edit, here is the reference.. - inspirepilots.com/threads/128gb-lexar-card-works-great.1084/

Just wondering. Why would you need such a large card for the Osmo?

I shot all my b rolls for a music video in 4K and had enough with a 32G dont know why you would need 128G

Westwoodfilms.c Posted at 2015-11-10 10:19
I shot all my b rolls for a music video in 4K and had enough with a 32G dont know why you would need ...

Thanks all. I'm not an expert, just started doing video and stuff as a hobby last year and never shot anything in 4K So that's good to know. Thanks much

Considering the extreme small size of the micro SD card, I would rather carry a number of 32 GB cards rather than one sigle 128 GB card to spread the risk of a card failure.

Heres a tip from someone who has shot many,many projects.  Use multiple cards as often as you change batts to lessen the issue of corruption on just one card...you will thank me later!i

i agree with dbeck,SD cards are fond of corruption issues.might swell get a couple 32GB cards

i have a lot of 16gb 32gb 64gb cards and their numbered 1 2 3 and so on
for different cameras like (16gb go pro panorama) (2 of 16gb go pro aerial video) (2 of 16gb osmo) (2 of 32gb canon) and many more
when i arrange them on my work desk, my coworkers call me THE MEMORY CARD MAN
why do i have that many? because i have lost a lot of photos when shooting my brothers wedding (memory card corruption)!
i had luck that my wife also was shooting with another camera she was learning how to shoot and saved us from trouble

andreib@me.com Posted at 2015-11-19 04:57
i have a lot of 16gb 32gb 64gb cards and their numbered 1 2 3 and so on
for different cameras like  ...

can you tell me this: i have a 64 GB card for my go pro and a 16 GB for my osmo
can i use the go pro card in the osmo without having to format it?
thanks for your input on the matter.
Julie

danieljulie1@gm Posted at 2016-1-6 10:01
can you tell me this: i have a 64 GB card for my go pro and a 16 GB for my osmo
can i use the go  ...

You can insert it and check if the DJI GO app give you the format warning or not, if there is a warning, it means you need to format it using DJI GO app. If there is no warning, then it can be used without problem.

I have two 128 GB cards that work just fine (for the most part) with my Osmo Pro.  However, the other day, I noticed that, as I got to the last hour of recording time, my DJI Go app started telling me that my card was slow and that a reformat was required.  It kept stopping the recording, too.  So even though my 128 GB card could fit 5 hours, I was only able to record for 4 hours on that card.

With the current price of 32 GB cards, and their really nice speeds, I'm about to order a bunch of 32 GB cards so that I can switch them with each battery.  The 128 GB cards will end up being used in my GoPro cameras, as they aren't as mission critical as my Osmo Pro.  Samsung Evo cards look pretty tasty to me.

I would not go for these large cards.
Better to switch every now and than and not risk loosing all footage when the card fails.