I absolutely offload and reformat every day and each session starts anew. however, I don't necessarily think smaller is better. certainly I will not fill up the larger cards, in fact 32gb is plenty as a recreational flyer. I don't hit start and stop at the end of the day but close to it. I find that buying the best card for the money based on capacity is my best bet. there was a time when 256gb cards were insanely expensive. now that they are cheap, it only makes sense to buy one for a few dollars more than the equivalent 128gb counterpart. my thinking is I don't want to end up with a bunch of cheapo small capacity cards that are essentially worthless. I have several dozens in the 16gb and below range and most are out of service. for my drones, I tend to use the same card for half the drone's life and then I move to a better card. in turn, that card is re-assigned to a GoPro or another camera or an older device, maybe a tablet or a cellphone. by then, it really doesn't help if it's 64gb so I'm trying to keep up even if I cannot use all of the space today. 6k is here, 8k is coming. and I'm not sure for how long I can continue to offload a day at a time. also, I'm the type of person who puts one sd card in one device and that is where it lives; devices don't share. for several years, I have been keeping track (copy and paste below):
Current:
* Samsung mobile phone: Main (unk 4gb), Mobile (1gb to transfer apk files); currently there is none in the mobile phone
Innovv C1: out of service
*Innovv C2: (exFAT) now featuring Sandisk Endurance 64gb
*Innovv C2: Ducati helmet mount (sdcard pulled) "Ducati Rider" and sometimes ducati-rear-facing (update: this camera will not function properly as a rear-camera since it will stop recording due to vibration CONFIRMED)
Sonim RS60: Lexar 32gb
*Innovv C3: Ducati front (Samsung 128gb Pro) now (Sandisk Endurance 64gb) but back to (Samsung 64gb) because endurance should go in drone (update: as of jan 2021 this camera is empty)
innovv K2: ducati primary front (Samsung Pro 128gb)
*Garmin Virb Elite white: (currently empty and out of service: was Samsung 64gb) this camera is basically destroyed so it's in a bag in pieces (may 2018) TRADE-IN FOR GP8 10/2019
Garmin Virb dark: Lexus passenger mount (sd card slot empty) out of service
Mobius Wide: Lexus rearward Sandisk 128gb (may need more space)
Mobius Regular: Ducati 1199s rearward or handlebar (Sandisk 32gb that needs to be erased) camera currently idle
**GoPro Hero 3+: Chest Mount Motorcycle (Sandisk Pro 128gb) now (Samsung Pro 128gb) and finally (128gb Sandisk black)
Dimika: out of service until back in service starting June 2018 (no microsd card assigned)
Samsung Smartcamera: in home (Samsung 128gb)
Dbpower: clone gopro camera mounted lexus overhead: no name 2gb
Call Duty camera (came with a 4gb camera); as of May 2018, this camera is destroyed and out of service (parts are placed in a bag, battery is the problem)
**CooliCam damaged Red (Sandisk 8gb that used to be in Mega), in service starting May 2018 for Ducati 1199 rear camera; share one microsd card with both red and blue cameras; currently Samsung 32gb
CarCam (looks like your traditional car camera used in the ashtray): microcenter 32gb
Stealth (Wyze v1 cam) w/64gb Samsung for continuous recording
Departure (Wyze v2 cam) w/64gb Sandisk for continuous recording
ezviz1: 16gb (unknown manufacturer)
ezviz2: 32gb (unknown manufacturer)
GoPro Session (Samsung Evo 128gb)
SQ11 (Sandisk 32gb) out of commission; microsd card pulled
SQ11 red (sandisk 2gb) use only for short term recordings
new camera Tenker (microcenter 32gb)
Garmin Drive 50 gps device has a 1gb microsd card in it (for backup uses)
Fire Tablet red7 (samsung 16gb)
Fire Tablet red8 (none)
Fire Tablet black (none)
Osmo Pocket (Samsung 64gb) now (Sandisk 128gb)
Osmo Action (Sandsik 200gb)
Dji Crystalsky: Samsung Evo 32gb
skydio 2: sandisk extreme 128gb
Tripltek: PNY Elite-X 128 gb
mavic 2 zoom Samsung 128gb not (Samsung 64gb) is this in innovv c3
dji goggles: Sandisk 64gb U3 (switch to using a blank extra samsung 64gb regular)
dji smart controller: (samsung 32gb)
dji mini 2: samsung evo 64gb sold mavic mini 1
DJI Mavic Air 2: Sandisk Extreme Plus 64gb
Autel
EVO 2 Pro: sandisk extreme plus 128gb
GoPro Hero 9 Black: Sandisk 128gb U3 A2 V30 Extreme
goPro Hero 8 black: Sandisk 32gb U3 A1 V30 Extreme
GoPro Max: Samsung 256gb U3 Evo Select
extras not yet in service:
*Sandisk 64gb U3 A2 V30 Extreme Plus
Samsung Evo 64gb (originally from Innovv c3)
(2) microcenter 32gb
*HyperX 256gb U3
Sandisk 32gb
*Sandisk Extreme 32gb (was
evo 2 pro)
+Sandisk Extreme 128gb u3/a2 (from b&h)
+PNY Elite-X 128 gb (NIB-must test)
Lexar 1066x silver 256gb U3 A2 v30