Value for its money! Clear sound on phone calls, crisp sound in music (even though the speakers are good), easy menu, plays all files etc. Perfect in everything! With the app you control everything.

Very good for its price. It's what we old folks say... if you can't afford Alpine, get Pioneer. 4 speakers from the source and 1 amplifier with sub, you can adjust them very easily. With the app, even easier, hands free is decent.

Very good source, it has everything. It would be good to combine it with an amplifier, of course, to make use of the 120w of my speakers in my case. But even without it, it does its job more than well. It definitely requires quite a bit of reading in the settings to set it up correctly and differently for each set of speakers. In my opinion, it needs a custom EQ to give 100%, the ready-made profiles are good but they are just ok. The rest of the settings are very useful. And its volume is very good. In general, I consider it VFM in the BLUETOOTH category.
Check it out on my profile:

https://www.skroutz.gr/short_videos/89678/pioneer-ichosystima-aytokinitou-1din-mvh-s420bt-unboxing?from=user_public_profiles

Very good sound and easy to use radio with many settings, good Bluetooth connection. Good value for the price and a huge upgrade to the stock radio.

very good sound.
the menu for me is difficult, I have it for a month and I can't connect the mobile...
In everything else it is very good!!

16-9-2025 second review....
After 6 months of use, the radio broke. There was no replacement and they refunded my money.

The source is unbeatable, flawless in everything (almost)
Much better sound, easy to use, nice lighting for the night. But my problems are the following: when I use Bluetooth sometimes the source freezes and doesn't play.... Nevertheless, top choice

I replaced a Chinese source costing €30 with this one. Chaotic difference. Combined with 4 aftermarket speakers, the car's sound system took off. Very high-quality construction with sturdy buttons that you can feel when pressed. Many useful sound settings such as Crossover HPF for the speakers and LPF for the Sub, three levels of Loudness, SRtr, a 10-band equalizer, Sub volume adjustment, etc. Also, easy and direct connection with iPhone!

After each start of the car, the microphone loses its settings and goes to off, and the volume is also at 0, so every time you have to go into the menu to turn the microphone on and set the microphone volume to 10. Also, the buttons are very difficult to use

Flawless, a pioneer in stable value, it has everything inside, even a microphone, all the cables/connectors one might need are included. I've had it for almost a year and it doesn't disappoint. Bluetooth + calls, plays music normally from USB plug and play, Spotify app. It has it all and of course, AUX as well. 10/10

Plastic, small and difficult to use buttons, and poor low lighting. The previous Pioneer I had, had a heavy bright screen and quality buttons

Installation in store and I haven't encountered any problems. They placed the microphone discreetly on the driver's column and when I talk on the phone, I haven't experienced any issues. It surprises me that it cuts off the left speaker, probably to avoid echo. Along with two speakers, my 20+ year old car has leveled up!

Installation in 2 cars, works like a charm, does what it says, both amplifiers were adjusted with DD1+. No interference or buzzing whatsoever, highly recommended!

Terrible sound for Pioneer, many connectivity issues with the USB, it would randomly switch to the radio or somewhere else, and the same goes for Bluetooth

Amazing for the price
The app is more than just a gimmick, it makes it easier to set up audio settings and has a very good 32 band EQ and allows to set up virtual crossovers on speakers (my front speakers are factory and tend to crunch on bass so it allowed me to lower bass on those and leave more base for the back speakers which are aftermarket)
Sound quality is amazing and the app has a virtual speedometer that uses the phone sensors to measure speed (great when your speedometer is faulty)
Most import it has crash detection based on the phone sensors that allows the radio to send a text message to a family or friend in case of crashing
Excellent!!!!

Menu navigation on the radio itself is a bit combursome (due to too many options) but great on the app

Purchase of one month. It is a good value for money choice for someone who wants to have a modern car radio with all the functions. Easy installation! User-friendly menu that someone without special knowledge can learn! Instant connection with Bluetooth and satisfactory sound quality with factory speakers. I deduct one star because even though it has an external microphone, I receive complaints that they cannot hear me during a call via Bluetooth! Especially if I have the window open, nothing can be heard! The microphone is placed on the driver's column, so it is essentially next to me!

In Saxo,

coming from the Osio source of 40 euros, which was decent for its price, the difference in sound is huge.
1. Higher volume.
2. Frequencies appeared that you couldn't hear with Osio.
3. Menu with a plethora of settings.
4. It can handle a powerful sound system (the speakers I have are Alpine replacements for the factory ones, and it seems like it can deliver much more).
5. I put a 160-watt speaker from a home audio system experimentally and it handles it clearly without any problems, along with the two 25-watt ones I have in the doors.
6. Easy installation, plug and play.
7. From the menu with the knob, you can also make phone calls.
8. Crossover, detailed equalizer.

10/10
(I haven't tried the app yet)

I have not regretted at all the money I have spent on this particular source. It has several sound quality settings, excellent. I have combined it with two pairs of speakers, one 12-inch subwoofer, and two amplifiers, and they kill it. Bravo to Pioneer!

The menu gave me a bit of trouble, but I looked at the manual and figured it out. The installation was easy and the sound quality improved significantly. The microphone is quite good. I placed it on my dashboard for better audio. They say they can't tell the difference between me being on the phone call and using the device. The app is a bit annoying, but it does its job. Overall, it's a great value for money

Good for what it offers, you need to know that some functions require the Pioneer app on your phone to be open in order to work, for example, the red button next to the steering wheel, which opens Google Maps directly on your phone, is very useful.

The Spotify function never connected to my phone, I don't know what else it offers compared to the regular Bluetooth audio function.

The previous/next and play buttons could be in a better position, or the wheel could function as a joystick. That's how it worked on my previous Pioneer.

Pressing the wheel takes you to the menu, it would be much better if it played/paused or muted. Speaking of which, there is no mute button anywhere.

During installation, I had to disconnect the blue plug (remote control) from the back, otherwise it wouldn't turn on.

Overall, I was very satisfied, just after 2 weeks of use, sometimes while playing music from Spotify, it disconnects and doesn't reconnect, and I have to turn off the car for it to be able to connect again, simply removing the device from the dock is not enough for it to recover. It may be temporary, time will tell.

After almost two years of use, it developed a problem with Bluetooth connectivity; you can't play music from your phone through the Pioneer app. The sound is distorted

Excellent in everything and I'm not exaggerating with the burnt speakers, it changed the whole sound of the car!! I highly recommend it, everything works as it says and the app is very helpful! I haven't tried the microphone yet...

I have 1 TRF SUB with 2 GAS 6.5 with a Four-Channel and the source is on another level, it's worth it especially if you have a sound system, very clean sound and the filters are impeccable, no comparison to other sources in the category.

I give it three stars because it is relatively flawless, but it has an issue with the speaker settings. For example, my right speaker has burned out and I set it to play only on the left side. It holds the setting for one week, but the following week it loses the setting. It doesn't lose the settings for the stations, but it does lose the settings for the speakers

The installation was easy and quick, it took me about 20 minutes because my old source was stuck. It is user-friendly and has many functions. The app connects easily and quickly. One observation is that the Spotify function has better sound quality than the general Bluetooth function. If it doesn't save your settings, you will need to reverse the yellow and red cables as happened to me, but luckily I knew about the problem.

Excellent, sound quality, volume and many useful settings. Through the Pioneer app, it also has remote control. Occasionally, there are connection issues with the app, but they can be resolved with a simple trick. Update: after 2.5 years, the tuner suddenly stopped working, but the rest of the device still functions. I bought the same model again because of its sound quality, ease of use, and variety of controls.
Update: after 6 months, the tuner stopped working again. After a delayed communication and inspection by the dealership, they decided to give me a credit. Therefore, the dealership is responsible, but unfortunately, this specific model has a serious bug. Sadly, I will have to write a LONG review! Changing my rating from 5 stars to TWO.

For its price, it is value for money.
Sound and Pioneer settings in a cheap Chinese construction.
While its sound is at the usual high standards of its high-end models, the build quality is cheap plastic with equally poor quality lighting and buttons (deep China...).
A negative is also that it does not support remote control. The app cannot replace it since, on one hand, it does not have functions for the radio and, on the other, you cannot use your phone as a remote control.
For its money though and what it offers, it is fair.