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Based on boAt’s published specifications, the Rockerz 421 Gen 2 is the stronger match for longer claimed playback, Bluetooth 5.4, IPX4 resistance and a stated low-latency mode. The Rockerz 450 is a straightforward choice if you want documented AUX listening. These are manufacturer specifications—not independent tests of sound, comfort, calls or battery life.
How the specifications compare
The figures below come from boAt’s official product and support pages. The 421 Gen 2 listing was retrieved in 2026 and does not display a publication date. boAt’s Rockerz 450 support page was also retrieved in 2026 and indicates it was updated two years earlier.
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| Specification | Rockerz 421 Gen 2 | Rockerz 450 |
|---|---|---|
| Claimed playback | Up to 60 hours at 60% volume, according to boAt’s product listing | 15 hours listed by boAt Support |
| Drivers | 50 mm × 2, per boAt’s product listing | 40 mm, per boAt Support |
| Bluetooth | Version 5.4, per boAt’s product listing | Version 4.2, per boAt Support |
| Battery capacity | 600 mAh, per boAt’s product listing | 300 mAh, per boAt Support |
| Low-latency mode | BEAST Mode; boAt claims 40 ms low latency | Support page says there is no low-latency support; it describes casual gaming and entertainment use |
| Charging | Type-C; up to four hours listed | Three hours listed. The main charging instructions specify the included Micro USB cable, but the support page later contradicts itself by referring to Type-C |
| Wired listening | AUX cable listed in package contents | AUX use documented; Bluetooth is not used while listening this way |
| Water resistance | IPX4 listed | No water-resistance rating established on the cited support page |
Playback figures are manufacturer claims, not results from a common test. Real runtime can vary with volume and use. A larger stated driver does not, by itself, demonstrate better sound, and Bluetooth version alone does not establish codec or multipoint support.
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Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →Choose the 421 Gen 2 for longer claimed playback and its listed features
Its official listing claims up to 60 hours at 60% volume, compared with 15 hours listed for the 450. It also specifies a 600 mAh battery, Bluetooth 5.4, Type-C charging and IPX4. Those are useful distinctions if you prefer fewer charging stops or want the newer listed Bluetooth version, but they do not prove a particular real-world runtime or sound advantage.
#1 Best Overall
- AI-ENx technology: Hustle on the go with crystal clear calls no matter where you are on the boat At Rockerz 255 Z Plus necklace headphones. Innovative AI-ENx technology drains background noise so your voice is heard clearly whether you're in a busy street, cafe or crowded room.
- BoAt Spatial Audio: Feel the sound envelops you from all directions with permission of boAt Spatial Audio. Each stroke, tone and rhythm become vivid for full immersion in content as you activate boats spatial sound.
- 50 hours of play time: Make holidays fun by watching movies and web series with 50 hours of playback of these headphones. With uninterrupted performance, these headphones are the perfect audio accessory for any audiophile.
- Magnetic Switches: Say goodbye to tangle as these earphones are designed with handy magnetic knobs. In addition, you can attach the knobs to connect to the sound and separate them to mute the sound directly.
- Google Fast Pair: Connect your phone, laptop, tablet etc. For Rockerz 255 Z Plus in one motion every time without tiresome manual scrolling. With Google Fast Pair, these headphones transport you to the sound dimension without connecting problem.
Gaming and video
boAt says the 421 Gen 2’s BEAST Mode offers “40ms low latency for a more responsive gaming experience.” Treat that as the manufacturer’s claim, not a guarantee of suitability for competitive play. The 450’s support page says it lacks low-latency support.
Resistance to splashes
The 421 Gen 2 listing specifies IPX4. The cited 450 support page does not establish a water-resistance rating, so it is not enough to conclude either that the 450 is waterproof or that it has no protection.
Rank #2
- AI-ENx technology: Hustle on the go with crystal clear calls no matter where you are on the boat At Rockerz 255 Z Plus necklace headphones. Innovative AI-ENx technology drains background noise so your voice is heard clearly whether you're in a busy street, cafe or crowded room.
- BoAt Spatial Audio: Feel the sound envelops you from all directions with permission of boAt Spatial Audio. Each stroke, tone and rhythm become vivid for full immersion in content as you activate boats spatial sound.
- 50 hours of play time: Make holidays fun by watching movies and web series with 50 hours of playback of these headphones. With uninterrupted performance, these headphones are the perfect audio accessory for any audiophile.
- Magnetic Switches: Say goodbye to tangle as these earphones are designed with handy magnetic knobs. In addition, you can attach the knobs to connect to the sound and separate them to mute the sound directly.
- Google Fast Pair: Connect your phone, laptop, tablet etc. For Rockerz 255 Z Plus in one motion every time without tiresome manual scrolling. With Google Fast Pair, these headphones transport you to the sound dimension without connecting problem.
Choose the Rockerz 450 if AUX listening matters
boAt Support explicitly documents AUX listening on the 450, including using it without Bluetooth. This makes it the clearer choice if you want the option of wired listening. The 421 Gen 2 package contents also list an AUX cable, so wired use is not exclusive to the 450; the documented battery-saving AUX guidance is specific to the 450 support page.
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Check the charging connection before buying a cable
The 421 Gen 2 listing specifies Type-C and up to four hours of charging. For the 450, boAt’s main charging instructions say to use the included Micro USB cable and list three hours, but a later answer on the same support page says Type-C is needed. Because that page conflicts with itself, confirm the connector on the exact unit or with boAt before buying a replacement cable.
Rank #3
- Blazing RGB LEDs with 6 Modes: Amplify your sound corner with the striking design of the boat At Rockerz 480 Bluetooth headphones. The flame RGB LED lights of these headphones are integrated with 6 modes that can be changed according to your preference.
- ODJOR Mode: Play solo or multiplayer games by enabling BEAST mode. Its 40ms low latency eliminates tough lag for a realistic feel.
- 60 hours playback: Charge less and enjoy more with the massive gaming time of the headphones. Set up your playlist or podcasts without charging your headphones for up to 60 hours.
- 40mm drivers: No matter what you listen to, the bassy boat Signature Sound from the 40mm drivers provides an impressive sound scene that brings your music to life.
- ENx technology: Answer calls from a busy workspace, public transport or cafe, using ENx technology that removes noise so you can speak and hear without looking for a quiet place.
Make sure you are comparing the Gen 2, not the earlier Rockerz 421
boAt has a separate support page for the earlier Rockerz 421. It lists 40 mm × 2 drivers, 400 mAh, up to 40 hours at approximately 60% volume, Bluetooth 5.4, Type-C and a two-hour charge time—different figures from the Gen 2 listing. Check the full model name on a retailer’s listing and packaging rather than assuming every product labelled “Rockerz 421” has Gen 2 specifications. See boAt’s earlier Rockerz 421 support page for that distinct model.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Availability and what specifications cannot tell you
When retrieved in 2026, boAt’s 421 Gen 2 page showed “Sold out” and “Restocking soon.” Stock can change, so check the live listing rather than relying on that snapshot; the cited sources do not establish current 450 availability or a current price. Neither official specification page provides a direct, independent comparison of sound quality, comfort, call performance, durability or measured battery runtime. Choose based on the listed features that matter to you, and check the exact product variant and live purchase terms before ordering.
Quick Recap
Best Value
- Blazing RGB LEDs with 6 Modes: Amplify your sound corner with the striking design of the boat At Rockerz 480 Bluetooth headphones. The flame RGB LED lights of these headphones are integrated with 6 modes that can be changed according to your preference.
- ODJOR Mode: Play solo or multiplayer games by enabling BEAST mode. Its 40ms low latency eliminates tough lag for a realistic feel.
- 60 hours playback: Charge less and enjoy more with the massive gaming time of the headphones. Set up your playlist or podcasts without charging your headphones for up to 60 hours.
- 40mm drivers: No matter what you listen to, the bassy boat Signature Sound from the 40mm drivers provides an impressive sound scene that brings your music to life.
- ENx technology: Answer calls from a busy workspace, public transport or cafe, using ENx technology that removes noise so you can speak and hear without looking for a quiet place.
Rank #4
- PLAY- Choose the real professionals and keep all charging worries away, as the Rockerz 450 Pro comes with a mountainous playback for up to 70 hours (60% volume. ).
- Charge ASAP - Charge 10 minutes and enjoy 10 hours of gaming time with the Rockerz 450 Pro
- Drivers - Unrivalled boat signature sound with 40mm drivers glows whatever you play. The Bass is tuned for a great experience that takes you to another world.
- Controls - Using easy access controls you can control your music without hiccups, communicate seamlessly using the built-in microphone, access the voice assistant and stay in area at all times
- Earpads - Ergonomically designed and structured over-ear headphones to provide the best user experience with comfortable padded ear pads and lightweight design
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problems
