U817A UFO Review
U817A UFO Review
The U817A is actually so similar to the U818A that they are almost the same product. In terms of looks there are extremely alike but if one looked a little closer at the product specifications it is obvious that this model which is actually cheaper might be the better model.
What I wanted to do with this review is compare the specifications of the U817A model directly with the specifications of the U818A. There is actually no reviews on this model on Amazon so the only thing that we can really go off of is to compare the specifications.
The first thing that is noticed is that the U818A has a 6 axis gyro system for stabilization and the U817A model has a 4 axis gyro system. There is also something known as the posture control integrated design which I would guess is fancy speech for the 4 axis gyro system meaning that if you tip the quadcopter and let go of the controls, it will right itself back up and get back into posture. This is probably what the sellers means when they are talking about posture control.
The U817A transmitter also uses a 4 Channel system to communicate like the U818A. Nothing unique or special there.
In terms of battery power, battery capacity, and motor power, again the seller claim to increase quadcopter flight time and be more energy efficient. The numbers tell a different story. This I think is the main difference between the U818A and the U817A model. For the U817a the amount of time it takes the charger to fully charge the LiPO batteries that go into the quadcopter is just 60 minutes, which is half the time it takes the U818A which takes 120 minutes. In terms of how long the device can fly, the maximum flight times are exactly the same, which is around 7-9 minutes.
The other great thing about this model is that its range is 50 meters (160 feet). The U818A was only able to do 30 meters.
The other difference is that this model requires one to have 4 AA batteries. The other model was using 3 AAA batteries for the transmitter. The radio frequency of the U817A model is also 2.4 GHz which is just the standard. Again, the AA or AAA batteries are not included with the quadcopter kit you do buy.
So we see that in terms of just the specifications the U817A takes less time to charge, actually have the time to charge than the U818A. The range or distance of it is also 20 meters better on all sides. The numbers of axises it uses in its stabilization system is just 4 axises while the other one used axises. It is around $10-$20 cheaper than the other model.
The main difference between these two models is that the the U818A has a camera installed into it and the U817A does not. If you are really serious about using your quadcopter drone to take pictures from a aerial vantage point, it might not be the best idea to go with the U818A because it is not in High Definition. However if you just wanted to see what the pictures you take from up above would look like, it might be reasonable to go with the other model. The DJI Phantom drone quadcopter has the GoPro Hero 1,2 or 3 mounted at the bottom and those take really good videos and pictures.
If however you just wanted a reasonably sized durable quadcopter to fly and play around with it makes more sense to go with the U817A quadcopter model since it is cheaper, take less time to charge the battery, and has a greater range of flight. I would recommend this model to a potential buyer.