I have been flying the EVO II Pro using an old iPhone 6s I had no better purpose for as second screen to the drone controller. However the screen brightness and battery live of the iPhone 6s are a bit too low. On a sunny day the screen is just bright enough to still see the camera orientation, but it is hard to judge fine details like focal length or under exposure of the image coming from the aircraft. Furthermore after less than 2 hours in the field the iPhone's charge (even when in low power mode) gets under 10% and becomes a reason to abort the drone mission.
So I think I should get a dedicated Android device to only be used for flying drones.
Now the question becomes what model on the market (new or secondhand) has enough battery power when the screen is at maximum brightness to support at least 4 hours of continuous operation? We usually bring eight Li-Po batteries with the EVO II so it can fly up to 4 hours. Should we recharge the first batteries used while using up the others we can get at least two batteries fully recharged so this extends the total operation time with an hour or more. Therefore a dedicated smartphone should be able to last for a minimum of 4 hours, preferably it should last even more at full brightness. The tech companies never advertise battery life when the screen is non-stop at full brightness, therefore this question goes out to you people in the field.
Today by advertised facts the Samsung Galaxy S21 Ultra is said to be having one of the brightest screens, but it comes at a price tag that seems quite overkill for the purpose. Theoretically the smartphone doesn't need an advanced camera nor a powerhouse processor.
Anyone out there in the field has some good or bad experiences with certain smartphones? Is there any last year's model that will work sufficiently?
So I think I should get a dedicated Android device to only be used for flying drones.
Now the question becomes what model on the market (new or secondhand) has enough battery power when the screen is at maximum brightness to support at least 4 hours of continuous operation? We usually bring eight Li-Po batteries with the EVO II so it can fly up to 4 hours. Should we recharge the first batteries used while using up the others we can get at least two batteries fully recharged so this extends the total operation time with an hour or more. Therefore a dedicated smartphone should be able to last for a minimum of 4 hours, preferably it should last even more at full brightness. The tech companies never advertise battery life when the screen is non-stop at full brightness, therefore this question goes out to you people in the field.
Today by advertised facts the Samsung Galaxy S21 Ultra is said to be having one of the brightest screens, but it comes at a price tag that seems quite overkill for the purpose. Theoretically the smartphone doesn't need an advanced camera nor a powerhouse processor.
Anyone out there in the field has some good or bad experiences with certain smartphones? Is there any last year's model that will work sufficiently?