Ryze Tech Tello Drone: Review

Ryze Tech Tello Drone: Review


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Drones are fun, but generally not informative. The Ryze Tech Tello ($ 99) would be both, because you can fly the drone with an optional Bluetooth app or remote control. You can also program the drone with Scratch, an open source programming language developed by MIT. With this simple but powerful language, you can write programs by dragging and dropping blocks of code, e.g. B. create a Lego model. Unfortunately, although the drone is nice and easy to fly, the programming could be improved.

Design: small and elegant
The Tello is a small drone measuring only 6 x 6 x 1.3 inches. It weighs just under 3 ounces, so you don’t need an FAA registration. Most of the weight comes from the battery, which slides with the rotors in the plastic body of the drone. These are protected by propeller guards which protect the rapidly rotating blades in the event of a collision. However, they do not completely cover the blades, so the Tello should only be used by people old enough to know where their fingers should not go.

The Tello can be controlled in three ways: via an application, a remote control or via the scratch programming interface. The Tello app is free for iOS and Android smartphones. This provides a touch screen interface for controlling the drone and a preview of the camera image. It is a simple program that provides a good level of control for beginners and experienced travelers. Photos and videos are saved via this app – the drone itself has no storage space.

Programming with scratch
Finally, the Tello can be controlled via the scratch programming interface. The configuration is more complex and is only described briefly in the documentation of a page. For this to work, you need to install the offline version of Scratch (which also requires Adobe Air) and Node.js, a JavaScript engine that uses Scratch. (These applications are available for Windows and Mac.)

This drone does not have a GPS. You cannot therefore schedule a course and configure the drone to follow you via the smartphone application. If the drone leaves the Wi-Fi range, it remains in place until the signal is restored. You receive a warning in the smartphone application, but the drone does not stop automatically or does not come back to you.

Photos and Videos
The Tello records 720P videos with a resolution of 1280 x 720 and still images with 5 MP (2592 x 1936).

Both are clean and crisp, with good details and bright, natural colors. When flying over the grass, the grass had a natural and vivid color and showed the details of the leaves.
Battery life: short
The 1100 mAh battery that powers the Tello provided 3-5 minutes of flight time. It is not long, about half the duration of the Parrot Mambo, especially if you try to use the programmable functions of the drone because it takes longer to start up.

The drone also has the annoying habit of turning off after about 30 seconds if no Wi-Fi connection is detected. If you are having trouble running the software, it will not take long.

Replacement batteries are available immediately and cost $ 18 each. There is also an optional charger that can charge four batteries at the same time for $ 24. Other spare parts are widely available, including hulls in different colors for $ 8 and a set of spare rotor blades for $ 2. A sentence is included. replacement rotor blades with the drone itself.


The Tello drone is fun with responsive controls that are suitable for beginners and experienced pilots. The app is easy to use and records great (albeit somewhat spotty) videos. But if you think of it as a fun way to learn programming, forget it: the scratch media is hacked, very limited, and poorly documented, and it sounds like an afterthought.
In this price range, we prefer the Parrot Mambo, which is just as pleasant to fly but which lasts longer for an additional fee and offers more programming options. The base model costs only $ 60, but can be configured with several accessories such as first-person glasses and a 720p camera. But if you are looking for a beginner drone, the Tello is a very good option.


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Product specification:

It folds as small as a bottle of water.
New OcuSync transmission system
ActiveTrack, TapFly and other smart functions
Obstacle avoidance combined with sensor redundancy
Visual positioning coupled with GPS and GLONASS

Once you get the DJI Mavic Pro and start removing everything from the box, you should expect the following.

The Mavic Pro drone
car charger
main charger
battery charger
Battery adapter to power bank
Two smart batteries
Two sets of propellers 8330
Three pairs of propellers
remote control
Shoulder Bag

Micro SD card
Micro-USB cable
electric cable
RC cable, standard micro USB connector
RC cable, lightning plug
Two RC cable sliders
Three textbooks
Two guides


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Ryze Tech Tello Drone

A small drone with serious power, safety features and agility. This is still the best drone according to it’s price and functions, DJI also added new version Mavic Platinum and now it’s even more better than ever.


  • Small, fast drone
  • Easy to control
  • Comfortable remote control


  • Scratch programming language is difficult to set up
  • Battery life is short
Our reading


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DJI Mavic Pro


February 14th 2020

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