What's the maximum capacity of MicroSD his drone scan support?

256 GB is the correct answer. You do need a fast transfer rate to smoothly transfer at 4K. One of the most reliable Micro SD cards for drones with plenty of speed is the SanDisk Extreme Pro Micro SDXC UHS-1 U3 A2 V30 Memory Card. It has a 4.8 rating and cost about $56.

If I do the math right, the mini combo w/ a extra batteries is actually more expensive than buying the Mini plus separate batteries. Comments?

Not exactly. Unless there’s a sale I’m unaware of, the MSRP on the Mini 2 by itself is $450 which includes one battery. The fly more combo includes 2 additional batteries which are $53 each. So a total of $556. The fly more combo is $600. So just buying the drone and 2 extra batteries would technically be cheaper. What’s also included is the charging bay which holds all three batteries. Which is worth the extra $44 itself (but it can buy bought online for about $35). Otherwise you have to plug the drone in every time you want to charge a battery and to charge all three, you’d have to swap each battery out and charge them one by one. The combo also includes 3 sets of propellers (which aren’t really expensive and you may never need them) and I don’t believe buying the drone by itself includes the carry case, which comes with the fly more combo. You could say that’s worth $15-$20. Which you’ll definitely want to hold everything and protect it. So if you have a case already and don’t want extra propellers, you’d maybe save money buying everything separately. But trust me, you’ll want the charging bay. The batteries run down quickly and take a while to charge. And without it, you can’t charge the other batteries while using the drone.

Can this drone fly a pre-planned grid pattern automatically over a 40 acre parcel of land?

DJI Mini 2 can perform the following pre-planned flights: Helix, Dronie, Circle, Rocket

what drone is comparable to this without geo zones?

The Autel Nano + is roughly equivalent to the DJI Mini 3 Pro. It is more advanced than the Mini 2, Mini 1, or Mini SE, just like the Mini 3 Pro. It has obstacle avoidance, and a camera which is equivalent to the Mini 3 Pro. Autel drones are widely used by first responders doing Search and Rescue missions, precisely because they do not have to waste time on geo-unlocking as they would have to on a DJI drone, when time is crucial for a rescue mission.

ASIN	B0BL3NZT5D
Age Range (Description)	Adult
Are Batteries Included	Yes
Batteries	1 C batteries required. (included)
Battery Capacity	2453 Milliamp Hours
Battery Cell Composition	Lithium Ion
Best Sellers Rank	#342 in Toys & Games ( See Top 100 in Toys & Games ) #2 in Hobby RC Quadcopters & Multirotors
Brand	DJI
Color	gray
Connectivity Technology	Bluetooth, Wi-Fi
Control Type	Remote Control
Date First Available	December 9, 2022
Effective Still Resolution	48 MP
Included Components	DJI Mini 3 x1, Gimbal Protector, Intelligent Flight Battery x1, Propeller, Remote Control, Screw, Screwdriver, Type-C to Type-C PD Cable x1
Item Weight	8.7 ounces
Item model number	CP.MA.00000587.01
Language	English
Manufacturer	DJI
Material	Aluminum
Maximum Range	10 Kilometers
Model Name	DJI Mini 3
Optical Sensor Technology	CMOS
Product Dimensions	14.25"L x 9.88"W x 2.83"H
Rechargeable Battery Included	Yes
Remote Control Included?	Yes
Remote Control Technology	Wi-Fi
Skill Level	All
Special Feature	Long Distance Control, 4K HDR Video, Wind Resistant, Lightweight, Foldable, Compact, One Button Return, Extended Flight Time
Supported Image Format	JPG, raw
UPC	190021074545
Video Capture Format	MP4
Video Capture Resolution	4K
Video Output Resolution	4K
Wireless Communication Technology	Wi-Fi

DJI Mini 3 (DJI RC), Lightweight 3x Mechanical Gimbal Drones with Camera for Adults 4K, 38-min Flight Time, up to 32800ft (10km) Video Transmission, Vertical Shooting, GPS Auto Return Integrated

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