HolyStone HS420 drone review: a toy for children and adults

HolyStone HS420 Drone Review: A Toy for Children and Adults

Hel­lo, friends. Sum­mer has already passed, but we still have many warm days ahead and we should not waste them in vain. Last year, my son and I bought the first street quad­copter for myself, it was the Holy­Stone HS240 mod­el, which attract­ed me with a rel­a­tive­ly long bat­tery life and an afford­able price. If you are inter­est­ed, you can check out the review on my chan­nel. The quad­copter was launched with his son, with col­leagues at work, and one col­league was ripe for a tri­al quad­copter already for his son. A mod­el was cho­sen for home flights or out­doors in calm weath­er, and, of course, they already chose with a cam­era, as the child want­ed. As a result, at the last sale, the Holy­Stone HS420 quadro­copter was pur­chased and today’s short review will be about it.

HolyStone HS420 drone review: a toy for children and adults

The quadric is half the size of my pre­vi­ous pur­chase, this is already notice­able in the box in which it comes. On the card­board pack­ag­ing, on the front part, the hero of the review is depict­ed in all its glo­ry. The mod­el is indi­cat­ed and the rec­om­mend­ed age is from 14 years old, which is just right for us. There is noth­ing inter­est­ing on the back side, the fea­tures of this quadric are indi­cat­ed on one of the sides of the pack­age: there is flip sup­port, cam­era sup­port and dif­fer­ent speed modes.

Every­thing is com­pact­ly locat­ed inside in a soft pal­let. On top lies the quad itself with three bat­ter­ies, all oth­er acces­sories are under it.

So, in our set we have:

  • one quad­copter
  • three bat­ter­ies
  • one con­trol pan­el
  • two charg­ers
  • 4 addi­tion­al screws
  • one screw­driv­er
  • one screw puller

Also, under all this is a thick book­let with instruc­tions in sev­er­al lan­guages. I think it will be very use­ful for novice pilots, any­way I read it care­ful­ly. Of the use­ful things in it, in addi­tion to the descrip­tion of the con­trol, there is a link to the appli­ca­tion for a mobile phone.

HolyStone HS420 drone review: a toy for children and adults

Let’s see what


declared by the man­u­fac­tur­er.

  • Brand: Holy Stone
  • Mod­el: HS420
  • con­trol; remote con­trol 2.4Ghz / the abil­i­ty to con­trol via smart­phone via wi-fi
  • built-in 720P cam­era
  • 2.4Ghz con­trol com­mu­ni­ca­tion range:: 100 m.
  • Wi-Fi con­trol range: 30 m.
  • Quad­copter bat­tery: 3.7V 300mAh
  • bat­tery charge time: 60 min­utes.
  • Flight time per charge: 6 min­utes *3.
  • flip func­tion, alti­tude hold, head­less mode

In addi­tion, sup­port for way­points in the appli­ca­tion and flight around the point are announced. As you can see, for a $ 20 quadric, the char­ac­ter­is­tics are nor­mal. And a big plus for buy­ers is that the kit comes with three bat­ter­ies at once. Since my first Eachine H8 quad, I bought with one bat­tery, but quick­ly real­ized that 4 min­utes was noth­ing at all and had to buy more.

Let’s go back to the quadric. Since the mod­el is intend­ed main­ly for indoor flights, the pro­tec­tion installed right away will be great at first. Since you will hit objects more than once if you do not have expe­ri­ence in con­trol­ling quad­copters. As they say, it is checked on itself. The case, name­ly the red part of it, is made of ordi­nary plas­tic, and almost all the black ele­ments are made of soft­er, which absorbs upon impact and is less prone to crack­ing. The screw pro­tec­tion is attached to small screws and in order to replace the screws or access the engines, it must be unscrewed.

HolyStone HS420 drone review: a toy for children and adults

At the front of the drone is a cam­era that, com­pared to the size of the drone itself, seems to be huge. But here the cam­era only has a res­o­lu­tion of 720p, which, giv­en the price of the device, is quite good. Plus, despite expect­ing the worst, the cam­era in day­light gives a good pic­ture. Above the cam­era is a white head­light, which allows you to nav­i­gate in flight.

HolyStone HS420 drone review: a toy for children and adults

On the back, there is a but­ton to turn on the drone, it is also a park­ing light. Just below you can see the con­tact pads for the bat­tery.

HolyStone HS420 drone review: a toy for children and adults

The bat­tery is attached from below, on latch­es in the grooves, it does not fall out dur­ing flights, it snapped off a cou­ple of times dur­ing falls, but this is nor­mal. The mod­el of the quadric and the volt­age of the bat­tery are indi­cat­ed on the bot­tom, this is use­ful to the user.

Run­ning lights are vis­i­ble even in sun­ny weath­er, in cloudy weath­er or indoors it is easy to dis­tin­guish the rear from the front of the quad­copter.

To com­pare the sizes with the hs240 mod­el, I took a cou­ple of pho­tos of this baby.

HolyStone HS420 drone review: a toy for children and adults

The con­trol pan­el is not over­loaded with unnec­es­sary ele­ments. There are two sticks for flight con­trol and four keys. Key assign­ments, count­ing from the upper left cor­ner: the pho­to / video key, under it is the but­ton to enable / dis­able the “head­less mode”, in the upper right cor­ner the key acti­vates the carousel when the quadric starts spin­ning around its axis, and under it is the auto take­off and auto key land­ing.

HolyStone HS420 drone review: a toy for children and adults

The key for turn­ing on the remote con­trol itself is locat­ed under the phone hold­er, there are also indi­ca­tors for the remote con­trol charge and switch­ing speeds of the quadric. The remote is pow­ered by three AAA bat­ter­ies.

Let’s move on to flight tests. First of all, the quadric was test­ed indoors. Here its big plus appeared, in com­par­i­son with eachine h8, it holds its height per­fect­ly and does not try to fly some­where. Let’s just say it’s not harsh to han­dle and is great for a begin­ner. At first it was test­ed with just a remote con­trol, then the Holy­Stone appli­ca­tion was installed and test­ing of the remain­ing func­tions of the quad­copter began.

After launch, our appli­ca­tion prompts us to reg­is­ter. Before con­nect­ing the pro­gram to the quadric, the lat­ter must first be turned on, after which it cre­ates a wi-fi net­work with the name Holy­Stone-FPV-*****, to which you need to con­nect your smart­phone. After that, a pic­ture from the cam­era appears on the smart­phone screen, and you have the choice either to con­trol only the smart­phone or the remote con­trol, but watch the image from the quad­copter cam­era on the smart­phone.

Let’s take a look at the inter­face of the pro­gram a lit­tle, since it has a but­ton for rins­ing with a descrip­tion of the inter­face.

Hav­ing con­nect­ed, we see the same inter­face, but super­im­posed on a real pic­ture from the cam­era. Next, turn on the con­trol pan­el with the cen­tral but­ton, use the left stick to move up and down to con­nect the quadric to the remote con­trol. It is also rec­om­mend­ed to cal­i­brate the gyro­scope for the first time, for this we put the quadric on a flat sur­face and press both sticks to the right and down. Every­thing, on this, all pre-flight prepa­ra­tion is com­plet­ed.

HolyStone HS420 drone review: a toy for children and adults

Then we press the auto start key, the quadric takes off to a cer­tain height, about a meter, and is ready for fur­ther flights. With the same but­ton, you can plant it, and a long press will cause an emer­gency shut­down of the engines.

Of the inter­est­ing good­ies, the quadric sup­ports 360-degree rota­tion in place, plus, if you press this key for a few sec­onds, the quadric will start a cir­cu­lar flight around the point. True, it does not fly in a cir­cle, but in a spi­ral. After a few laps, it returns to the point from which it start­ed the flight.

The app also keeps flight time sta­tis­tics, but only if you fly with the app acti­vat­ed.
Anoth­er fea­ture that works only in the appli­ca­tion is the flight along the route. To do this, the appli­ca­tion has a spe­cial icon, by click­ing on which you sim­ply draw a route on the smart­phone screen and the quadric tries to repeat it. Looks inter­est­ing, kids love it. Sup­port for VR glass­es has also been found, but for lack of them, I can’t check this func­tion.

The drone can auto-land when the bat­tery is low, and a noti­fi­ca­tion appears on the pro­gram screen. More­over, the quadric not only cuts down the engines, but smooth­ly goes to land, no longer respond­ing to com­mands from the remote con­trol.

Like my pre­vi­ous drone, this one can take pho­tos and videos and write to the phone’s mem­o­ry. Sep­a­rate fold­ers are cre­at­ed, from which you can then take files. As before, there is not enough mem­o­ry card on the quadric itself, but for such a price, of course, you should not expect it. Because of the wire­less con­nec­tion, the pic­ture is some­times dull and twitchy, but in prin­ci­ple they were ready for this. Pho­to and video are cre­at­ed in the same qual­i­ty, with a res­o­lu­tion of 1280*720. I’ll attach a cou­ple of screen­shots from the drone’s cam­era below, and a link to the video will be at the end of the review.

Ask price Holy­Stone HS420

Well, some con­clu­sions after the tests.

To be hon­est, I real­ly liked this one among small quadrics, first of all, with sta­bil­i­ty in flight and, there­fore, ease of con­trol. Yes, it is not as smart as the Eachine H8, for exam­ple, but this is not nec­es­sary for an apart­ment or a room. Of course, out­door flights with it can be arranged, but prefer­ably in calm weath­er, as a light breeze will blow it away. I real­ly liked the pack­age, despite the fact that we are buy­ing a bud­get quad­copter for a child, there are three bat­ter­ies in the kit and two charg­ers at once. In prin­ci­ple, a child and an adult will have time to enjoy the flight in 15 min­utes. Since I also test­ed the drone indoors at work, I also received feed­back from adult col­leagues. The cam­era is cer­tain­ly not the strongest point of this device, but it real­ly adds to the fun in use. May I rec­om­mend to buy? Yes, you could, but catch sales and coupons, because for the full price you can take a larg­er mod­el, for exam­ple, HS240. That’s all, thanks for read­ing, if you have any ques­tions, I’ll try to answer.

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