The Beats Flex Wireless are colorful budget-friendly in-ears with a neck cable. They have a simple, comfortable, and lightweight design that feels well-built. Thanks to their W1 chip, it's also easy to seamlessly pair them with different Apple devices. However, while fans of EDM and hip-hop may enjoy their bass-heavy sound profile, they lack an EQ to finetune their sound to your liking. Their companion app also lacks a lot of functionality and doesn't really offer that much in terms of extra features.
The Beats Flex are okay for neutral sound. Their bass-heavy sound profile is better-suited for genres like EDM and hip-hop, especially as their underemphasized treble range veils vocals and dull sibilants. Due to their closed-back, in-ear design, they also don't have a very immersive soundstage. Their companion app is very limited and doesn't have an EQ or presets to allow you to adjust their sound to your liking.
The Beats Flex are good for commute and travel. They're comfortable, lightweight, and can be worn around your neck when you're on the go. Since they're fairly small in size and have a flexible plastic and silicone design, you can easily stash them in most pockets or bags without an issue. They have an 11-hour continuous battery life too, which should be enough for daily commutes. On the downside, they struggle to isolate bass-range against noise like bus or plane engines.
The Beats Flex are great for sports and fitness. These in-ears have a comfortable and stable fit, although they don't have ear-hooks or stability fins. They're also lightweight, which makes them very portable, and they have good build quality. However, they don't have an IP rating for water or dust resistance, although we don't currently test for this.
The Beats Flex are alright for office use. These headphones have a comfortable fit and have over 11 hours of continuous battery life, which should last through long days at the office. While they don't have active noise cancelling (ANC), they're still able to passively cut down a fair bit of ambient chatter around you. They also don't leak a lot of audio, so you can listen to your audio at a high volume without disturbing others around you.
The Beats Flex are Bluetooth-only headphones. While they can be used via Bluetooth on PCs, their latency is likely too high to be recommended for gaming.
The Beats Flex are Bluetooth-only headphones and can't be used wired.
The Beats Flex are mediocre for phone calls. Their integrated microphone does a mediocre job capturing speech, and your voice sounds thin and slightly muffled. It also struggles to separate ambient noise from speech, even in moderately noisy environments. While these headphones can help cut down office chatter around you, they struggle to reduce deep, low noise like bus engines, which can make it harder to focus on your call.
The Beats Flex have a sleek and simple design that looks very similar to the Beats BeatsX Wireless. They have a neckband cable that gives them a slightly more sporty look. However, unlike the Beats Powerbeats 4 Wireless, they don't have ear-hooks. They come in four color variants to better suit your style: 'Black', 'Yuzu Yellow', 'Smoke Grey', and 'Blue'.
The Beats Flex are comfortable, lightweight in-ears. They don't have a deep in-ear fit, and the cable shouldn't feel fatiguing around your neck. Unfortunately, the ear tips can fall out of your ears if they don't form a good seal.
The control scheme is alright. There's a button rocker on the left side of the neck cable that allows you to adjust the volume. Next to it is a multi-purpose button. Pressing once lets you play or pause your audio. You can also activate these commands by magnetically clipping the earbuds together. Two presses skip the track forward while three presses skip the track backward. You can also scan through your audio forward by pressing once and then holding the button or scan backward by triple tapping. If you want to activate voice assistant, hold the button until you hear a chime. On the right side of the neck cable is a power button. While the controls have some audio cues, the multi-purpose button isn't the most clicky.
These headphones are outstandingly portable. Thanks to their flexible design, they can be easily folded up to fit into most pockets or bags. Since they also have a neck cable design, you can also wear them around your neck when you're on the move.
These headphones have a good build quality. They're mostly made of silicone and plastic, which makes them very flexible. They also feel durable enough to survive a couple of accidental drops. However, the ear tips seem like they could easily rip, and they don't have an IP rating for dust and water resistance, although we don't currently test this.
The Beats Flex are stable headphones. Although they don't have ear hooks or stability fins, they should stay put in your ears as long as you achieve a good seal. Luckily, they come with four differently-sized ear tips so that you can find your best fit.
The Beats Flex have a bass-heavy sound profile, which is well-suited for thumpy genres like EDM and hip-hop. Unfortunately, their treble is underemphasized, resulting in veiled vocals and lead instruments as well as dull sibilants like S and T sounds. Unfortunately, they lack an EQ to help tweak their sound to your liking.
These headphones have an outstanding frequency response consistency. Once you achieve a proper fit and seal, you should get consistent bass and treble delivery each time you use them.
The Beats Flex have good bass accuracy. There's overemphasis across the entire range, which packs extra thump, punch, and boom to your mixes. While this sound is well-suited for bass-heavy genres like EDM and hip-hop, some users may find they sound overtly muddy and boomy.
The Beats Flex have excellent mid accuracy. The range is fairly flat, which keeps vocals and lead instruments present in your mixes. However, the bump in the high-mid can make vocals and lead instruments sound a little honky.
The treble accuracy is acceptable. It's underemphasized across the range, so vocals and lead instruments are veiled while sibilants like S and T sounds are dull and lispy.
The Beats Flex have very good peaks and dips performance. The range is well-balanced up to the mid-mid. There's a peak in the high-mid that makes vocals and lead instruments sound honky and harsh. However, a dip in the low-treble veils the upper harmonics of these sounds.
The Beats Flex have outstanding imaging. The group delay is below the audibility threshold for the entire range, ensuring a tight bass and transparent treble reproduction. The L/R drivers of our unit are also very well-matched in amplitude, frequency, and phase response, which is important for the accurate placement and localization of objects such as instruments or footprints in the stereo image. However, these results are only valid for our unit and yours may perform differently.
The Beats Flex's passive soundstage is bad, which is to be expected for closed-back in-ears. To create a large and out-of-head soundstage, the outer ear needs to be activated by sound resonances. However, by design, in-ears bypass the outer ear altogether. As a result, the soundstage is perceived as small and as if it's coming from inside your head. Since they also have a closed-back design, they won't seem as spacious as open-back headphones.
The weighted harmonic distortion performance is good. There's a slight peak between the low to mid-treble, but it shouldn't be very noticeable. All ranges fall within acceptable limits, which should result in clean and pure audio reproduction.
These are the settings used to test these headphones, and our results are only valid when using them with this configuration.
The Beats Flex have decent noise isolation performance. They only reduce a bit of bass-range noise like bus or train engines, which may not be suitable if you commute every day. They do a much better job with mid-range noise such as ambient chatter and can cut down a significant amount of high-pitched noise like the hum of an AC unit.
The Beats Flex's leakage performance is outstanding. If you're working at the office, people around you shouldn't be able to hear your audio, even if you're listening to it at a high volume.
The integrated microphone has a mediocre recording quality. Your voice sounds boxy, thin, and slightly muffled. However, you should still be understandable to whoever's on the other line.
The integrated microphone's noise handling is passable. The mic struggles to separate your voice from background noise, even in a moderately loud environment like a busy street.
The Beats Flex's battery performance is passable. They have a continuous battery life of 11 hours and fully charge up in just over an hour. Beats advertise a 'Fast Fuel' feature, which gives you 1.5 hours of playback time on a 10-minute charge. However, we don't currently test this feature. These headphones also don't have any power-saving features and can't be used while charging. Battery life can vary depending on usage, so your real-life experience may vary.
These headphones have a very limited companion app. You can turn on and off the auto-pause that activates when you remove them from your ears. You can also turn on and off auto-call answering, but that's about it.
The Beats Flex have decent Bluetooth compatibility. They don't have multi-device or NFC pairing. However, they do have a W1 chip so you can seamlessly pair them with Apple devices. While they have high audio latency on PC, their latency on iOS and Android is a lot lower, making them better suited for streaming video. That said, some apps and devices compensate for latency differently, so your results may vary.
The Beats Flex can't be used wired. They come with a USB-C to USB-C charging cable.
These headphones aren't compatible with the Xbox One.
The Beats Flex come in four color variants: 'Black', 'Yuzu Yellow', 'Blue', and 'Smoke Gray'. We tested the Yuzu Yellow variant and you can see its label here. We expect each of these variants to perform similarly to our test unit.
If you come across another variant, please let us know in the discussions and we'll update our review.
The Beats Flex are simple, colorful in-ears with a neck cable design. They have 11 hours of continuous playback time and can be seamlessly paired with any Apple product thanks to their W1 chip. While they're stable enough for light exercise, they don't have ear tips or stability fins to help keep them in place, unlike the Jaybird Tarah Pro Wireless or the Beats Powerbeats 4 Wireless. Their companion app also doesn't offer a lot of extra features either.
The Beats Flex Wireless and the Sony WI-XB400 EXTRA BASS Wireless are similarly performing headphones, and depending on your usage, you may prefer one pair over the other. The Beats are more comfortable, stable, and have a better build quality. They also isolate more noise and have a W1 chip so that you can seamlessly pair them with Apple devices. However, the Sony have a better-balanced sound profile, which some users may prefer, and longer continuous battery life.
The Beats Flex Wireless are better in-ears for most uses than the Beats BeatsX Wireless. The Flex are more comfortable, feel better-built, and have longer-lasting continuous battery life. They also have lower audio latency on iOS and Android. However, the BeatsX have a more stable in-ear fit and come with a case. They also have a better-balanced sound profile, which some users may prefer.
The Beats Flex Wireless and the Sony WI-C310 Wireless are similarly performing headphones and depending on your usage, you may prefer one pair over the other. The Beats are more comfortable, better-built, and have a more stable fit. They also have a W1 chip so that you can seamlessly pair them with Apple devices. However, the Sony have a better-balanced sound profile, which some users may prefer, and longer continuous battery life.
The Beats Powerbeats Pro Truly Wireless are better wireless headphones for sports and fitness than the Beats Flex Wireless. The Powerbeats Pro have a more stable fit and a better-balanced sound profile. Their carrying case also offers an additional charge, giving them over 22 hours of continuous battery life, and they have a standby mode to help conserve battery life when not in use. However, the Flex can isolate against more noise and leak less sound.
The Anker SoundBuds Curve Upgraded 2019 and the Beats Flex Wireless offer similar performances and depending on your usage, you may prefer one over the other. The Anker come with a hard case and are more stable. They also have a better-balanced sound profile and a longer-lasting continuous battery life. However, the Beats feel better-built and have a W1 chip so that you can seamlessly pair with Apple devices.
The Jaybird Tarah Pro Wireless are better headphones than the Beats Flex Wireless. The Jaybird are better built and have a more neutral sound profile. They also have longer-lasting battery life, and their companion app offers a parametric EQ and presets to help tweak their sound. However, the Beats are more comfortable.