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If you don't need FANET/FLARM -> Strato Lite

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Here is list of functions:

  • vario - speaker sound, average vario, barometric altimeter
  • GPS - IGC tracklogs, ground speed, heading, glide ratio, GPS altimeter, altitude above ground
  • Europe and destination country terrain data preloaded
  • Bluetooth telemetry - connection to XC apps (XCtrack and FlySkyHy)
  • thermal assistants - thermal trace (XCtrack slyle) or circle style (as SkyDrop)
  • wind - speed and direction calculated from circling
  • FLARM & FANET radar - nearby pilots data telemetry to XCTrack app
  • color map - terrain, roads, villages, cables
  • airspaces - shown in map, not pop-up warning
  • smart Bluetooth sound - Strato can be your Bluetooth speaker for music in the air or on ground - sound can fade between different volumes while thermaling or gliding.
  • Interactive context help - no need to study user manual anymore
  • other - battery level, G-meter, odometer, actual time, flight time, direction and distance to takeoff place, altitude graph


Other cool WiFi functions, what has Strato as the first vario ever. Works on PC as well as mobile phone. Via hotspot or local WiFi network.

  • over-the-air updates, automatic new update check - don't need cable for data transfer anymore
  • WiFi IGC download - you can download IGC files directly to your phone just after landing
  • GNSS simulator - you can select on map where you would like to see Strato flying map or airspaces
  • vario sound editor - you can set your preferred vario sound and listen it directly from Strato in real time






So many new cool features and ideas, which we are no longer able to fit into our little cute SkyDrop, have challenged us to go for something new and advanced. We put the brains and skills together and voilá - here it is - Strato.


For the size of an average middle class vario equipped with high-end functions! Strato has a sunlight readable 3” transflective color display. It weighs just 180 grams with a solid battery life of 12 hours. Strato fits your cockpit in a vertical position, so it leaves a lot of space for radio, phone or other gadgets.


Do you remember that strange feeling when you accidentally got sucked into cloud on your favourite XC highway during the “hammertag”? FLARM transmitter will notify glider pilots, keeping you from being smashed like a bug on the windshield, while the FANET transceiver will keep you aware about other paragliding pilots in proximity. Strato will also show you possible airspace violation and collision with power or lift lines.


Strato is equipped with the high quality sensors from market leading Swiss manufacturers. High performance GNSS receiver from u-blox supporting GPS, GLONASS, Galileo and BeiDou. Best in class barometer from MEAS Switzerland, with motion sensors provide instant vario response.


Annoyed by that typical tamagotchi beeping? Soft and precise vario tones from high quality speaker will help you effectively to climb to the cloudbase. Then enjoy your favourite music played from phone through bluetooth, during the glide. If you find unprotected speaker weak solution, watch this video ;)   https://www.youtube.com/watch?v=5T20MyZYOG0


Connect to your favorite XC app via Bluetooth. Strato is connected via Wi-Fi to your phone or home network for automatic tracklogs upload.
energy management

Energy Management

Strato has two USB-C ports, so in the air, energy can flow from the power bank through Strato to the phone. Quick Charge technology is able to provide huge amounts of energy for faster charging, an hour while driving to takeoff is enough.
user interface

User Interface

Strato customizability will surpass his smaller brother SkyDrop. You are able to use different profiles for XC, PPG or local soaring and change almost anything to your personal preferences. Choose from a large amount of widgets and place it across multiple pages.
after party

After Flight Hangout

Use strato as a music player or bluetooth speaker. Integrated torch light will help you find your way back to your tent. As a bonus Strato can also work as a powerbank for your smartphone.

Physical parameters:

  • weight 180 g
  • dimensions 138 x 58 x 24 mm
  • battery 5000 mAh,  20 h fly time
  • memory 32 Gb


  • vario - analog/digital/average, acoustic signalization, graph history
  • instant vario response
  • flight logs - IGC accepted for FAI Category 1 competitions, CSV
  • GNSS(GPS, GloNass, Galileo) - ground speed, altitude, heading, glide ratio
  • altimeters - 2 adjustable altimeters
  • auto take off and landing detection
  • wind speed and direction
  • FANET and FLARM beacon
  • detailed color map
  • airspace violation audio warning with graphical representation
  • bluetooth audio transmission through integrated high quality speaker
  • flightbook with statistics
  • android connectivity - XCTrack, FlyMe, XCSoar, LK8000, TopHat, Sky Land Tracker, Paragliding Dashboard
  • iOS connectivity - FlySkyHy, SkyLogger, SkyLogger XXL
  • fully customizable - multiple screens with configurable layouts and widgets
  • height above ground level (AGL)
  • thermal assistant
  • Digital compass
  • G-meter
  • Odometer
  • bearing and distance from take-off
  • real time clock

Hardware spec:

  • Measurement Specialties - MS5803 barometer
  • u-blox - NEO-M8Q GNSS receiver
  • ST - LSM9DS1 IMU
  • Espressif - ES1ESP32 WiFi/Bluetooth module and audio coprocessor
  • ST - STM32H7A MCU
  • ask for more if you are interested :)

Package contains:

  • Strato variometer with hardened protective glass on LCD
  • velcro adhesive hooks&loops
  • protective pocket
  • plastic cover of vario top
  • USB-C to USB-A and USB-C to USB-C cable
  • 18W dual port wall charger
  • quick user guide
  • sticker

All the necessary tools and materials for strato can be found here in

 Strato repository

Many pilots from pre-order campaign are/were disappointed due to slow software progress. Now we can proudly say that after facing many difficulties, the latest D301 software is stable.

The true is that we underestimated so complex project (6cpu cores, sound coprocessor etc.) and its huge load for R&D, so we were too hurry with Strato release to public. Here we can explain more deeply why Strato had slow software progress.

We faced challenges due to problems in our storage system, which also affected the overall stability of the system. The major issue was faulty FAT file system (formerly used by computers). To solve this, we have decided to change the storage system from FAT to RED.

  • To learn more about why the device isn't working well in real-life situations, we added a way to track problems and gather information about how the device is working.
  • We found that classic FAT file system was not able to identify and fix random errors, time to time generated on SD card. Due to this random and non-trackable errors Strato's software might crash in random situations.
  • Migration to another file system was huge, but for user not visible change, therefore it seemed nothing is happening for long long time.
  • After implementation and testing this huge change, we also needed to create remote procedure acceptable for mid skilled user.

We can say that progress is fast, now preparing functions:

  • Side view of the airspace and topography
  • downloads maps and ground-level information automatically via WiFi
  • Shortcuts - quick access to different functions from pages
  • Way to download airspace information directly from the device 


Context live manual:

There is new help system accessible directly in device, so you don't need to study and learn user manual anymore. Help and explaining notes are right there and always available. All you need from manual is to learn how to access page and settings menu (the same principle as SkyDrop). When inside menu, press and hold option button in the right bottom of keypad and detailed description of the current menu entry will pop-up.


If you haven't found your topic here - there is also Strato FAQ page here

Rated 4.50 on the scale 1 - 5 based on 8 customer reviews


Overall I like this device after flying with it a few times. I cannot get the map option to work, and with the included charger, I still get slow charging warnings on the screen, but everything else works fine and it seems to charge just fine. Battery life seems pretty good so far. Yes, my firmware is up to date. Likes: Size and shape, ability to fully customize all pages/screens, which is super easy to do, the Bluetooth option, quality of the device, and ease of navigating the device overall. Dislikes: The volume of the vario and music you play through it via Bluetooth are the same. When playing music, volume levels for approx. 40%- 50% are plenty loud but not for the vario. The vario is fine at 100%, but music will distort at this volume level. The biggest issue I have with this vario is I find it very difficult to see information on the screen in flight. I mean, very difficult. I really do like this device, but difficulty seeing info on the screen during flight is a big deal for me. I suggest improving this.

Reply from SkyBean s.r.o.:
We appreciate this long review. Here are some notes regarding your suggestions.<br /> - There are two USB-C ports, both working for charging, but only the left one supports quick charge feature.<br /> - Map - You may need to upload map and terrain data from our database here - https://strato.skybean.eu/map/<br /> - You can set music and vario levels separately for glide and thermalling.
Verified purchase

super service

schön langsam wird das Strato ein tolles Gerät- leicht zu bedienen, schnell, die paar Kleinichkeiten die noch fehlen kommen bald, dann kann man sein Handy finster lassen und braucht keinen Zusatzakku mehr mitschleppen.

Update July 2022

Ok so the vario runs very nicely, now. Quite good at sniffing lift immediately. The speaker makes for a pleasant sound if you tweak the audio profile to your liking. Strato is really quite unique device. I just came from a vol biv trip - we made fire, played some music in the evening on the Strato, charged the phone a bit. It was quite nice. A lot of traffic in the air, but I knew that they see me with FANET and FLARM.

Verified purchase

Superb for Paramotoring

I've been using my Strato for quite a long time and it's now in a configuration where I can do a review. The performance is really good and I'm very happy to recommend it to other pilots. The introduction of the map has been a game changer and it works very well even at this stage of development. The display is very easy to configure and moving widgets and changing them is very straightforward. Battery life is very good, the size and weight are good and the keys are a good size and easy to use.<br /> <br /> Here's a list of widgets that I use with comments.<br /> Altitude 1 - simple to set and reliable<br /> Height above take off - love it, super accurate<br /> Map - very good and easily viewed in flight<br /> Groundspeed - stable and accurate<br /> Arrow to take off point - perfect and very useful<br /> Distance to take off - perfect and super accurate<br /> Time to take off - accurate to 1/10 minute when returning to take off field<br /> Flight time - accurate and reliable<br /> Wind - seems accurate and comparable to Skydrop<br /> Compass - accurate with reference to known headings<br /> Vario Bar - love it, especially the colour display and the ability to change it's size/width<br /> Odo - Very accurate to record the whole track flown<br /> <br /> I'll stress again that I fly a paramotor so I don't need or use a lot of the clever vario widgets. I haven't been able to verify the Flarm function yet as there doesn't seem to be much OGN coverage in my area.<br /> I'd be happy to recommend the Strato to any paramotor pilot at it's current firmware standard and with the planned functions (airspace etc) coming soon, it's even more attractive. Well done! <br />

Verified purchase


It looks like it got shipped 1 Year too early. I received mine in July and till today it is really just a simple vario. The software is so much behind and with the speed they develop it will take another 12 Month to get somewhere the device can be used solo.<br /> <br /> 06.12.2021<br /> At this moment following works (more or less):<br /> - Vario<br /> - Compass<br /> - Track download via cable<br /> <br /> Everything else they promised is not available or barely working:<br /> - Map<br /> - Flarm<br /> - Firmware Updates<br /> - Wireless<br /> - Bluetooth<br /> - Volume Control<br /> - Music<br /> - Flashlight<br /> - Thermal Assistance<br /> - Navigation<br /> - Bluetooth connection to third party software<br /> - and the whole rest :)<br /> <br /> SkyBean started shipping this device in May and now we have December and it feels like you paid for something that is by far not ready and might never be. This is the feeling I have and if I knew I would have spend my money somewhere else. The 3 star is only because I have other products from SkyBean and they actually work.

Reply from SkyBean s.r.o.:
Hi Jerome,<br /> <br /> thank you for your review. At the same time please make sure you have the newest firmware installed. The latest fw - no. 177 - has following features already implemented and working:<br /> - Flarm<br /> - Firmware Updates<br /> - Bluetooth<br /> - Volume Control<br /> - Music<br /> - Flashlight<br /> - Bluetooth connection to third party software<br /> <br /> If something is still not working for you even after latest update please contact us on info@skybean.eu.<br /> We are regularly fixing the issues and adding new features. Thank you for your patience

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