Review: BetaFPV Cetus X FPV Kit – Is It The Best Beginner Kit?

by Oscar
Betafpv Cetus X Fpv Kit Beginner Drone Radio Goggles

The BetaFPV Cetus X FPV kit is probably one of the best beginner kits you can get right now. It comes with everything you need to start flying: the drone, radio, FPV goggles, battery and charger. This is BetaFPV’s 3rd generation FPV kit, the Cetus X has been improved considerably from the previous Cetus Pro.

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It’s a great RTF kit for beginners to learn how to fly FPV drone.  In this review I will talk about the pros and cons, and how you can setup it up for your first flight.

Where to Buy?

You can get the BetaFPV Cetus X FPV Kit from

Receiver options available are ExpressLRS 2.4GHz and Frsky D8. There are also two FC options: Betaflight and Cetus. The Cetus is BetaFPV’s own developed firmware. I will be reviewing the ExpressLRS and Betaflight version, this is also the version that I’d personally recommend.

Betafpv Cetus X Fpv Kit Package Box It comes with the following items in the box:

  • 1 x Cetus X Brushless Quadcopter
  • 1 x LiteRadio 3 Transmitter (ELRS 2.4G)
  • 1 x BETAFPV VR03 FPV Goggles
  • 4 x 1S 450mAh Lipo Battery (BT2.0)
  • 1 x Battery Charger
  • 1 x USB-C charging/data Cable
  • 1 x Type-C to FC Adapter
  • 1 x Prop Removal Tool
  • 8 x Gemfan 2020 4-Blade Prop (Spare Set)
  • 1 x Portable Storage box

Betafpv Cetus X Fpv Kit Unbox Accessories

If you want spare propellers and batteries:

Specs and Features

Betafpv Cetus X Fpv Kit Beginner Drone Radio Goggles

Cetus X Brushless Quadcopter:

  • Wheelbase: 95mm
  • FC: F4 1S 12A AIO FC
  • Motors: 1103 11000KV Motor (1.5mm motor shaft)
  • Props: Gemfan 2020 4-Blades Props
  • Camera: C04 FPV Camera (Caddx Nano Ant Camera/Runcam Nano 4)
  • Camera Adjustable Tilt Angle: 0° to 40°
  • Receiver Protocol: ELRS 2.4G (SPI)
  • VTX: M04 25-400mW
  • Input Voltage: 2S
  • Recommended Battery: 2x 1S 450mAh with BT2.0 connectors
  • Weight: 56g w/0 batteries, 81g with 2x 1S 450mAh batteries

VR03 FPV Goggles

  • 5.8GHz 48 Channels
  • Screen Size: 4.3 inch
  • Screen Resolution: 800*480
  • Aspect Ratio 16:9
  • Built0-in 1S 3.7V 2000mAh
  • Working Time: About 2 hours (Normal mode)/1 hour 10 mins (Recording mode)
  • Max Charging Current: 1A
  • Antenna Port: RP-SMA (Whip Antenna included)
  • Charging Port: Type-C
  • Micro SD card slot for DVR (SD card is not included). Supports FAT32 format, maximum 64GB storage. Class10 is recommended
  • DVR: Resolution 480P, AVI Format
  • Size: 130*145*90mm
  • Weight: 330g with strap

LiteRadio 3 Transmitter (ELRS version)

  • Support Protocol: ExpressLRS 2.4G
  • Output Power: 25mW/50mW/100mW
  • Internal 1S 3.7V 2000mAh Battery
  • Supports USB-C Charging / Firmware Update
  • Supports FPV Simulator
  • Supports External TX Module
  • Weight: 247g

Closer Look at the Cetus X Whoop

Betafpv Cetus X Fpv Kit Drone Whoop The micro drone had a massive upgrade from the previous Cetus Pro.

You can purchase this quad separately:

The Cetus X drone still uses similar frame design but it’s much more powerful. It’s now powered by 2S (7.4V), previously with the Cetus Pro it was only 1S (3.7V). This enables the Cetus X to handle windy outdoor environment better and fly more steadily.

Besides Betaflight FC, there’s also another option for the Cetus FC with optical flow camera and LiDAR sensors, that enables altitude hold flight mode. In my opinion I think the Betaflight version is better, it’s simpler and altitude hold flight mode doesn’t really teach you how to fly, it only makes things more complicated. Master angle mode, then learn air mode, that’s it.

Betafpv Cetus X Fpv Kit Drone Whoop 2s 1s 450mah Lipo Batteries

The Cetus X has a pretty cool double battery design, it takes two 1S 450mAh batteries which are connected in series to double the voltage for the drone.

Betafpv Cetus X Fpv Kit Drone Whoop Bottom Frame Battery Connectors Bt2 The advantage of using two 1S batteries instead of a single 2S battery is that you can reuse those 1S 450mAh packs on other models such as the popular mobula7 (though you need to replace the battery connector to BT2.0) or other 1S BetaFPV whoops.

Betafpv Cetus X Fpv Kit Drone Whoop Size Compare Mobula6 Mobula7 65mm 75mm

Left: Mobula6, Middle: Cetus X, Right: Mobula7

Overall I think the Cetus X performs much better than the Cetus Pro, despite being heavier and bigger. It flies really well indoor, and it handles the wind better than the Pro. The frame is very durable compares to other drones of similar sizes.

Betafpv Cetus X Fpv Kit Drone Whoop Motor 1103 11000kv

BetaFPV redesigned the canopy and it now allows you to change the camera angle, this is one of the biggest improvements in my opinion for beginners. By changing the camera angle you can easily adjust your flying speed according to the environment.

Betafpv Cetus X Fpv Kit Drone Whoop Side Camera Tilt

However, the main disappointment for me personally would be the video transmitter antenna. It’s pointing horizontally behind the camera, which means when you are flying away or towards yourself, you will have the worst possible signal. This significantly limits how far you can fly this drone. The ideal antenna placement should be pointing it upward, but I think this design decision came down to durability, the antenna is fully protected this way when you crash. Anyway, if you truly care about range, I’d probably drill a hole on the canopy and poke the antenna through.

The other thing is the lack of a buzzer which is quite important especially for beginners, it can help you locate the drone after crashing. The Cetus X doesn’t have a buzzer, but you can use the motors as beeper which would be helpful. I will show you how in the “how to setup” section later.

I wish the drone came with UART receiver instead of an SPI one. The difference is in firmware updating and future ExpressLRS support. SPI receiver are still being supported by ELRS V3, but it’s hard to say beyond that. Also SPI receiver firmware is part of the FC firmware, so to update the receiver you’d have to update Betaflight. Therefore you can’t update ExpressLRS to V3 firmware yet as support won’t come until Betaflight 4.4. So at the moment we can only use ExpressLRS V2. Anyway, as long as you keep the radio and drone on ExpressLRS V2 firmware, it’s not a problem.

You can also control the Cetus X drone using another radio with ExpressLRS 2.4GHz TX module (V2 firmware).

Closer Look at the VR03 FPV Goggles

Betafpv Cetus X Fpv Kit Goggles Strap

The VR03 goggles are very basic but get the job done, for $70 it’s not bad at all I got to say.

You can purchase this goggles separately:

I don’t have the exact number but I think the FOV (field of view) is around 40 degrees (noticeably smaller FOV than the HDO2).

There’s no focal length adjustment, and no way to use diopter lenses, so if you wear glasses, this goggle might not work for you. However, I wear glasses (near-sighted and I use -2 diopters on my other goggles), I can still see the screen well enough to fly.

Betafpv Cetus X Fpv Kit Display Screen Faceplate Foam Padding

They made some improvements from the last version. The new VR03 goggles have built-in DVR, and an external antenna for better signal.

Betafpv Cetus X Fpv Kit Goggles Buttons

The DVR has the same menu interface as the Fatshark goggles, similar video quality, records at 480p with a bitrate of 7.5Mbps and in AVI format. However, SD card is not included, here’s my SD card recommendation for DVR.

The antenna is removable, you can swap it out to a higher gain antenna if you want. The antenna connector is RP-SMA.

Betafpv Cetus X Fpv Kit Goggles Antenna Charging power from USB-C gets up to 4.7W, to fully charge the radio from empty would probably take around 1.5 hour.

Closer Look at the LiteRadio 3

The BetaFPV LiteRadio 3 is as basic as it can get, it has just enough controls and switches to let you fly a drone. The gimbals are not the best quality but get the job done. There is no screen and menu buttons, the only status indicator is the power button LED.

You can purchase this radio separately:

Betafpv Cetus X Fpv Kit Radio Transmitter Lite 3 Hand Hold

To configure the radio and internal ExpressLRS module, you’d have to use BetaFPV’s own configurator.

Betafpv Radio Lite 3 Configurator 1.1.1

It is a pretty compact radio, and the gimbals are quite small and doesn’t have the control precision as some other bigger and more expensive radios with full size gimbals. But again, it’s not bad as a budget beginner radio and will get you in the air. There are four switches, SA and SD are latching switches, SB and SC are 3-position switches.

The antenna is hidden inside the housing, it’s a clean design and easier for transportation, but it won’t give you the best possible signal compared to an external antenna. But ELRS is a solid radio link and it makes up for that. In my testing, the radio link at 100mW (max power) definitely outperforms the video link so that’s not something to be concerned about.

Betafpv Cetus X Fpv Kit Radio Transmitter Lite 3 Switches Top

The USB-C port on the bottom is for charging, as well as connecting to computer for FPV simulators.

Betafpv Cetus X Fpv Kit Radio Transmitter Lite 3 Connectors Usb Trainer Bind Setup Buttons The LiteRadio 3 actually supports external TX module as well! It’s great if you want to use a higher power ELRS module for example.

Betafpv Cetus X Fpv Kit Radio Transmitter Lite 3 External Module

Unfortunately, my radio wasn’t setup properly out of the box.

Firstly it didn’t want to bind with the quad. It turned out that the internal ELRS RF module was not enabled. To enable it, I had to connect the radio to the BetaFPV configurator. I will explain how I did it in the “how to setup” section later.

Because the radio has no screen and voice feedback, it’s a bit confusing what is actually going on. Unlike OpenTX/EdgeTX radios that give you warning when the switch positions are not set properly when powered on, the LiteRadio 3 just turns on regardless the switch positions, e.g. if the arm switch is enabled, it will still turn on and just ignore the arm switch. However the quad will not arm (motors don’t spin) until you disarm it, then arm again. With throttle stick, it would show a warning (red LED) and it won’t work until throttle is moved to the lowest position.

Charging power from USB-C gets up to 4W, to fully charge the radio from empty would probably take around 2 hours.

You can control another drone with ExpressLRS receiver (V2 firmware) using this radio.


Betafpv Cetus X Fpv Kit Charging Lipo Batteries

The charger doubles as a voltage checker. It has two channels meaning it can charge two batteries at once, those are separate channels, you can plug in or unplug one of them at any time.

When charging two LiPo simultaneously charging power gets up to 12W using a fast charging adapter, to fully charge two batteries from empty would probably take under 1.5 hour.

How To Setup For First Flight

The Cetus X FPV kit comes with a really well written manual, it explains pretty much all the details you need to know to set up the drone and system. Anyway I will talk about the steps I took to get the Cetus X off the ground.

First thing first, charge the radio and goggles (see chapter 4.5 and 5.4 in the manual). Also charge the batteries (chapter 3.6)

Betafpv Cetus X Fpv Kit Charging Goggles Radio

To turn on the radio, hold down the power button until you hear 3 beeps.

Ideally your drone should be bound to the radio out of the box. If not, bind them following instructions in Chapter 8.2 .

If you can’t get them to bind, go to the BetaFPV configurator and see if the Internal RF module is enabled. Maybe it’s turned off just like mine. Download the BetaFPV configurator here:

Connect the radio to your computer via the USB-C cable. In the configurator, click “Activate Configurator for Radio Transmitter”, then click “Connect RC” button. (no need to select any COM port)

Betafpv Radio Lite 3 Configurator Connect

In there, you can also change other ELRS settings such as output power and packet rates there.

Betafpv Radio Lite 3 Configurator 1.1.1

Once the binding is complete, you probably want to calibrate the sticks too. It only needs to be done first (see chapter 8.3)

Now, connect the quad to Betaflight using the USB adapter and cable provided.

Download and install Betaflight:

Betafpv Cetus X Fpv Kit Connect Usb Fc

In the Betaflight configurator, go to the Receiver tab, and check if the channels are responding when you move the radio sticks.

Betafpv Cetus X Betaflight Receiver

To setup DShot beeper, simply enable RX_SET under DShot beacon in the configuration tab (select 3 Beacon Tone which is louder than 1)

In the modes tab, assign beeper to the SD switch which is unused. That’s it. Your motors should now beep when you push the SD button.

Betafpv Cetus X Betaflight Beeper Dshot Mode Insert the batteries to the drone.

Now power on the goggles, and search for the drone’s video signal by holding down the search button (S button) for 3 seconds (see chapter 5.2). Note that the auto search function isn’t always accurate, it might only find a frequency that is near the channel the drone is broadcasting on, and it’s not good for your video signal. To find exactly what channel the drone is using, you should go to the OSD menu, Features, VTX (see chapter 6.2 in the manual for instructions).

You can manually set a channel here, as well as output power.

It’s best to set Band to Raceband, Channel to 8, and set Power to 400mW (that’s the maximum for this drone, but if that’s illegal where you live, you should stick with default of 25mW). Now go to Raceband channel 8 on your goggles, and you are all set :)

Betafpv Cetus X Vtx Smartaudio Osd Menu Channel Power

You can now take the quad for your maiden flight!

You can learn about what the controls and switches do (e.g. arming, flight modes etc) in chapter 4.

You can record your flying using the DVR in the goggles (see chapter 5.3). Apart from sharing your video with friends and family, DVR can be useful also when you fly outside. If you crash and have no idea where the drone is, you can review the footage and see where the crash happened.

The flight controller is running the latest Betaflight 4.3.1 firmware, the FC board target is BETAFPVF4SX1280. Original CLI can be found here. The onboard SPI ExpressLRS receiver comes with firmware ELRS V2.X.

Flight Performance

I was a bit frustrated by wrong radio configuration, it took me nearly an hour to figure it out. But once I set it up, it just flew beautifully, it really put a smile on my face :) Really stable when flying indoor, BetaFPV has done a good job tuning its PID. It’s got plenty of power because it’s 2S, but it doesn’t feel over-powered and still easy to control when flying inside the house.

By default it’s in Angle mode, you can switch to Rate mode (they call it Air mode) by flipping the SB switch, but it’s a challenging flight mode for beginners, so only try it once you have mastered Angle mode. Horizon mode is just Angle mode with the ability to do flips, no need to spend time on it.

I also flew this drone outdoor, but it struggled in the 15MPH wind (which is typical weather where I live). It constantly got pushed around, but I think it should be flyable in under 10MPH wind condition.

Betafpv Cetus X Video

No issue with range when flying in the house, but when flying outside, the range is only about 150 meters roughly. It’s mostly limited by video signal due to the poorly positioned antenna. If it’s mounted properly you will get a lot more range. But for learning how to fly, 150m is plenty, especially if you are just flying around the house.

Flight time is about 4:30 minutes indoor, 3:30-4:00 minutes outdoor.

When it comes to more advanced acrobatic flying, the Cetus is probably not the best. It’s quite heavy for a 2S whoop, has some yaw washouts when recovering from dives (yaw wiggles), and it’s not as nimble as some other more powerful/lighter 2S drones like the Flywoo Nano Baby 20. But in my opinion that’s not what the Cetus X is designed for, it’s meant for durability and learning. Overall The BetaFPV Cetus X is a decent beginner’s FPV kit for diving into how to fly a drone and how to use Betaflight on a budget.

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Ekrem Mutluer 7th July 2024 - 9:48 am

Hi Oscar. Do you have new discount code for betafpv site? And which one do you recommend for beginners, aquila16 or Cetus ? Thanks.

Oscar 8th July 2024 - 4:47 pm

I don’t currently have a code.
The decision depends on your need, if you plan to eventually fly a more serious Betaflight FPV drone, then get the Cetus X, it has slightly higher learning curve but you get into Betaflight straight away. The Aquila16 is slightly easier to start, and would be more suitable for indoor flying, but what you learn with its flight controller system doesn’t really apply to the real world.

Guest 31st March 2024 - 9:49 pm

Just bought the Cetus X as my first trainer drone. I’ve watched a lot of YouTube videos and have a fairly good understanding of what to expect. However this guide is probably going to be very valuable to me when setting up. Very well written. I will be referencing it quite a lot over the coming weeks/months. Thank you.

Wan Man 1st February 2024 - 3:47 pm

Good morning,
I already fly helicopters so I already have a Radiomaster TX 4+1 radio, a never used Google EV800D, battery charger etc. I would like to buy only a beginner FPV drone. Which one do you recommend?
Thanks for helping me.
Wan Man

Morten Sørensen 7th June 2023 - 9:16 am

Hi. Do you know if it is possible to use the goggles and the remote control from the Cetus FPV drone in the Cetus X drone? Or do I need the whole kit?

Oscar 7th June 2023 - 12:12 pm

No the radios are not compatible, the Cetus X is now using ELRS 2.4Ghz radio link, while the older Cetus is using Frsky D8. But the goggles are compatible.

Smoooth 1st June 2023 - 8:40 pm

Do you think the Cetus FC Version cane be used with my Taranis remote?

Oscar 1st June 2023 - 10:03 pm

No the FC version comes with ExpressLRS radio link. You can however get an ExpressLRS TX module for your Taranis, then it’d work.

Smoooth 25th June 2023 - 4:59 am

I was able to get the Cetus FC version to work with my Taranis QX7.

Raul 21st August 2023 - 10:09 pm

4 days trying to link drone to radio controller express. It just won’t bind. When I press the find drone button it’s the only one that works. Goggles work good too. Just can’t get the drone props to turn. Simulator doesn’t work, the speedy bee doesn’t neither. Just doesn’t seem to be connected to anything when I try

Steve M. Cook 27th May 2023 - 3:18 am

I have had DJI drones and toy drones for several years now, for the the Cetus X stock PID was not good, extremely touchy…then again I am using a Zorro and had to program it, so maybe I have something setup wrong? Thank you for all of your info, it has been very helpful.

Oscar 27th May 2023 - 1:14 pm

Sounds like your rates were too high, and it’s probably not PID related.
Go to the Betaflight Configurator, PID tuning tab, and go to “Rates”, where you can adjust the sensitivity of the sticks. For more info check this tutorial: