ramblinmen wrote:
I know of no drone, presently manufactured, that will fly for 25 minutes on one battery. That is most likely the manufacturer's spec and may be "UP TO 25 minutes". Depending on the brand and age of your phone they may not be able to connect with the drone (iPhone 5 or older do not). Make sure you get a liberal return policy and stay away from a refurbished product. If the drone has ever been flown in dusty or dirty conditions grit in the motor pods will cause them to fail. If even one fails the drone may go down. Make sure the manufacturer sells replacement body shells, legs... any external body part.
All recent drone products have 4K video but, unless your replay device can take advantage of 4K, it is a waste of technology. The advantage of using a drone utilizing a GoPro is that you can remove it and use it elsewhere. The disadvantage is the additional cost and the older models (3 silver) may have difficulty connecting to the wifi. The 3dr solo used to cost $1200-1500 but now sells for around $250-350 new. Finding replacement parts may be an issue as that company is nearly out of business. There are web blogs for most of the major versions of drones. I would suggest doing some homework before any purchase.
Look at the reviews.
I know of no drone, presently manufactured, that w... (
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My Typhoon H is supposed to fly for "up to 25 minutes." However, if I don't do anything other than fly--no raising and lowering the landing gear, no rotating the gimbal, no taking pictures, no taking video, no turning other things on and off (like RTH, PTF, Smart flight, Angle flight), etc., I have gotten just over 32 minutes before the system warned me about low battery and to land as soon as possible.
If I do things, especially taking videos, I'm down in the 18-19 minute range. Because of that, I now have four batteries. I need an hour of flight time with pictures and videos.
As to drone flight failure due to losing a motor pod or propeller, Typhoon H, a hexacopter, is purported to be able to fly with 5. Since my mission needs are critical for real estate photography, I went out to test that claim. The Typhoon H has 3 clockwise-rotating propellers and 3 counter-clockwise. I simply left off a propeller to see if it would even take off. It did. I didn't push it, keeping it near me and about 10 feet off the ground in case of catastrophic failure. It continued to fly and do everything that it was supposed to do. So I believe that if one-rotor catastrophe happens while in the air, I'll be able to get it back home.
As to 4K video, one doesn't necessarily need a display for 4K video. One can simply take the 4K video into Wondershare Filmora (which I use) and probably Corel Video Studio and Adobe Premiere and convert them to YouTube quality. However, if one ever needs that 4K video, such as a Client wanting it, one has it. With GoPro, one doesn't have it at all.
For parts, I can highly recommend Carolina Dronez
https://carolinadronz.com/ . I have no business interest in them and they do not pay me for an endorsement. I simply am an extremely satisfied customer, as are at least 14 of my compadres in the San Diego Drone Association that I belong to.