Both are JBL multi-speaker features; the difference is whose standard they follow. On JBL's own product pages, the Charge 5 lists "JBL PartyBoost | Yes" over Bluetooth 5.1 and describes connecting "multiple JBL PartyBoost-enabled speakers"; the Charge 6 lists "Supports Auracast | Yes" over Bluetooth 5.4 and describes stereo pairing and multi-speaker playback "with Auracast™." PartyBoost speaks JBL's own protocol; Auracast is the Bluetooth SIG's standard, shared with other brands and venues.
Figures on this page were checked September 2026. Every claim about either feature is anchored to the JBL product page named in its row.
The two features, from JBL's pages
JBL's own product pages document both features, one generation apart, which makes this comparison unusual: it doesn't need a single third-party word.
| JBL Charge 5 | JBL Charge 6 | Source / as of | |
|---|---|---|---|
| Multi-speaker feature (spec table) | "JBL PartyBoost | Yes" | "Supports Auracast | Yes" | JBL product pages, 2026-09-24 |
| Bluetooth version | 5.1 | 5.4 | JBL spec tables, 2026-09-24 |
| Bluetooth profiles | A2DP 1.3, AVRCP 1.6 | A2DP 1.4, AVRCP 1.6 | JBL spec tables, 2026-09-24 |
| JBL's own description | "connect multiple JBL PartyBoost-enabled speakers" | "stereo pair two Charge 6 speakers … connect multiple Auracast™-enabled JBL speakers" | JBL product pages, 2026-09-24 |
| Whose standard | JBL's own feature name and protocol scope | The Bluetooth SIG's broadcast standard | Structural, from the two pages above + SIG definition, 2026-09-24 |
What actually differs
Three differences fall out of the pages above, and they are structural rather than editorial.
The protocol. PartyBoost is documented by JBL as a JBL feature — the spec row reads "JBL PartyBoost," and the description scopes it to "JBL PartyBoost-enabled speakers." Auracast is the Bluetooth SIG's broadcast standard, the same one this site's Auracast profile documents: a broadcast model designed to let arbitrary nearby receivers join.
The company it keeps. A PartyBoost chain is a JBL-speaker chain, per JBL's own wording. An Auracast speaker joins a wider world: JBL's Charge 6 copy describes multi-speaker playback across "Auracast™-enabled JBL speakers," while the standard itself is what venues, TVs and phones broadcast on — the cross-brand lane that PartyBoost's naming doesn't claim.
The stereo-pair detail. On the Charge 6, JBL documents stereo pairing — two speakers as left/right — as an Auracast use. On the Charge 5 generation, multi-speaker behavior arrives under the PartyBoost name. Same manufacturer need, different protocol generation: Bluetooth 5.1 hardware versus 5.4.
What this comparison does not say is that one feature is "better," or that PartyBoost is discontinued: both generations are documented as current products on JBL's site, each with its own spec sheet. If you own five Charge 5s, PartyBoost does exactly what JBL says it does.
If you're buying
- Already in the PartyBoost family: staying within it works per JBL's description; check the specific model's spec table for the "JBL PartyBoost" row before adding a speaker to the chain.
- Starting fresh or mixing brands: the Auracast row ("Supports Auracast | Yes") is the one that matches the standard's ecosystem — venues, phones and receivers included.
- Reading any speaker's spec table: the row name tells you the lane. "JBL PartyBoost" is the proprietary lane; "Supports Auracast" is the standards lane. JBL's Auracast headphone record shows the same per-model discipline on the wearables side.
Every cell above quotes or paraphrases a named JBL page with a date. Where the two features could be ranked — sound quality, loudness, range — this page is silent, because JBL's pages don't rank them and neither do we.
FAQ
Per JBL's Charge 5 product page: "Thanks to PartyBoost, you can connect multiple JBL PartyBoost-enabled speakers for a sound big enough for any crowd." It is JBL's own multi-speaker feature, listed in the spec table as "JBL PartyBoost | Yes" on Bluetooth 5.1 hardware.
JBL's own description scopes it to "JBL PartyBoost-enabled speakers" — the feature name itself is JBL's. Cross-brand multi-speaker playback is built into the Auracast standard's broadcast model, per the Bluetooth SIG.
JBL's current Charge 6 page documents the Auracast lane instead: "Supports Auracast | Yes" over Bluetooth 5.4, with stereo pairing and multi-speaker connection described "with Auracast™." PartyBoost remains documented on the earlier generations' pages, and both generations are on sale — this page records each product's own spec sheet rather than declaring a replacement.
Not per the two pages this comparison cites: the Charge 5's spec table lists PartyBoost and the Charge 6's lists Auracast. For any other model, read that model's own spec table — JBL documents the feature per product.
blafili Bicast XLR Transmitter
XLR and USB-C inputs with Bluetooth 5.2 and a broadcast mode for feeding several receivers at once. Built for studios, venues and shared listening.
- JBL Charge 5 product page: spec table "JBL PartyBoost | Yes"; description "Thanks to PartyBoost, you can connect multiple JBL PartyBoost-enabled speakers for a sound big enough for any crowd."; spec table Bluetooth version 5.1, profiles A2DP 1.3, AVRCP 1.6. jbl.com/CHARGE5-.html, accessed 2026-09-24
- JBL Charge 6 product page: spec table "Supports Auracast | Yes"; feature copy "With Auracast™, we can effortlessly stereo pair two Charge 6 speakers for a wider sound stage and connect multiple Auracast™-enabled JBL speakers to cover more ground with the same playlist."; spec table Bluetooth version 5.4, profiles A2DP 1.4, AVRCP 1.6. jbl.com/CHARGE-6.html, accessed 2026-09-24
- Bluetooth SIG, Auracast overview: broadcast model and standard definition. bluetooth.com/auracast/, accessed 2026-09-24