OK, which one?

@lanx0003 - that $699 price would seem to be for the Blusound Node Performance. That's the price the 2024 model is being sold for on Amazon. In your prompt, did you put "Node Nano" in quotes? Sometimes that will help it realize that 'Node' is not the end of the product name. 

@larsman  take a look at the last image provided by mahgister and you will know what I was talking about, please.

I really don't know where did mahgister pull the AI information from.  Never seen those before.  For resurrence purpose, I pull the information from ChatGPT, which seems to provide more accurate information.  It gives sources where the information was drawn / derived from...

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Comparison: WiiM Ultra vs Node Nano

Key Specs & Features

WiiM Ultra

Pros / Strengths:

• Very rich connectivity: RCA line-out, coax, optical, USB, HDMI ARC input. (Chisholm TV & Stereo)

• High-quality DAC: ESS Sabre ES9038Q2M. (ecoustics.com)

• Supports up to 32-bit / 384 kHz (internally) per some sources. (ecoustics.com)

• Room correction / EQ: 10-band graphic + parametric EQ. (WiiM)

• Inputs: Has analog inputs including phono (MM/MC). Ultra has phono in. (WiiM)

• Subwoofer output with crossover, level, phase, latency adjustments. (Chisholm TV & Stereo)

• Good SNR: ~121 dB. (Audioholics)

• Built-in HDMI ARC lets you integrate with a TV (for soundbars or stereo systems). (Chisholm TV & Stereo)

• LAN and Wi-Fi 6E support. (www.av.com)

• Very low distortion: THD+N reported as 0.00018% at certain sample rates. (Audioholics)

• Touchscreen display (3.5") + physical volume knob. (Chisholm TV & Stereo)

• Roon Ready. (www.av.com)

Cons / Drawbacks:

• No AirPlay 2 according to the manual. (WiiM)

• Some criticism of build / user interface: e.g., plastic-feeling knob, screen responsiveness. (Reddit)

• The phono stage is “rather average” according to some reviews. (ecoustics.com)

• Boot-up / switching lag when changing high-res sources per reviews. (Rondoson)

Use Case Fit:

• Great if you want a feature-rich streamer/preamp with inputs (especially analog, phono) and a subwoofer out.

• Ideal for someone who wants to integrate TV or turntable.

• Good if you want flexible EQ / room correction in the streamer.

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Bluesound NODE Nano

Pros / Strengths:

• High-quality DAC: ESS Sabre ES9039Q2M. (Bluesound International)

• Support for high-res streaming: up to 24-bit / 192 kHz. (Bluesound International)

• Connectivity: RCA analog out, optical, coaxial, USB-A audio output, Ethernet, Wi-Fi. (Bluesound International)

• Bluetooth 5.2 with aptX Adaptive, two-way. (Blue Sound)

• AirPlay 2 support: very useful for Apple ecosystem. (Digital Trends)

• BluOS platform: supports lots of streaming services, multi-room with other Bluesound devices. (Bluesound International)

• Processor: Quad-core ARM Cortex-A53, pretty powerful for streaming tasks. (Blue Sound)

• Compact size: small footprint, can be wall mounted. (Aria Audio)

• IR remote learning, two quick-touch presets. (Bluesound International)

• Smart home integration: Crestron, URC, Control4, etc. (Bluesound International)

Cons / Drawbacks:

• Sampling limited to 24/192: not as high as WiiM Ultra’s spec (though 24/192 is more than enough for most sources).

• No phono input or analog-in: it's streamer + DAC only, not a preamp.

• No HDMI: so not designed for AV / TV integration like Ultra’s ARC.

• Relies on BluOS app or front panel presets; no built-in screen for browsing or EQ editing.

Use Case Fit:

• Excellent if you already have an amplifier or DAC, and you just need a high-quality network streamer.

• Ideal for Apple users or those on multi-room Bluesound setups.

• Great for compact systems, or hidden installation (wall mounted, small footprint).

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Sound / Performance Differences (Subjective)

• According to What Hi‑Fi, the Ultra delivers very good clarity and detail, with a “step up” in sound quality over their lower-tier streamers. (What Hi-Fi?)

• On the Node Nano, reviewers say the DAC is very good, giving “breathtaking dynamics” and low distortion. (Safe and Sound HQ)

• Some users believe the Nano sounds more open and “clear” compared to the Ultra, especially when used with an external DAC. (Reddit)

• On the flip side, Ultra users appreciate the built-in room correction / EQ as a big plus for improving sound in their room.

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Price Considerations

• The WiiM Ultra is typically around $329 MSRP per Audioholics. (Audioholics)

• The Node Nano is around $379 per Bluesound’s site/specs. (Bluesound International)

• So they're pretty close in price, though Ultra may be cheaper depending on sales or outlets.

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Which One Should You Pick (Based on What You Might Want)

Here are some scenarios to help decide:

• Pick the WiiM Ultra if you:

  • Want analog inputs (turntable) and subwoofer management.

  • Value HDMI ARC for TV / AV use.

  • Want built-in EQ / room correction.

  • Are okay without AirPlay.

• Pick the Node Nano if you:

  • Want a compact, clean streamer + DAC combo.

  • Use AirPlay / Apple ecosystem.

  • Might use multi-room with other Bluesound gear.

  • Don’t need phono or ARC.

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Nano. No contest. Bluesound gives great customer service and has been married to the streaming format for a long time. BTW I think AI has lots of limitations and wouldn’t use it much while deciding on my audio gear. My two cents…