{"product_id":"kanji-sonoma-4d-massage-chair","title":"Kanji Sonoma 4D Massage Chair – 4D Massage Mechanism \u0026 SL-Track Roller System","description":"\u003c!-- pff:phase7-creative v1 --\u003e\n\u003cp\u003eThe \u003cstrong\u003eKanji Sonoma 4D\u003c\/strong\u003e is Kanji's mid-flagship — a true 4D chair with the brand's signature Japanese-influenced engineering at a $10,623.95 entry price into the Kanji lineup. Where the Shogun Duo (Kanji's top-of-line) runs twin tracks, the Sonoma 4D delivers a single-track 4D experience refined over multiple generations — quieter motor, smoother roller transitions, and a control menu that leans toward Shiatsu-style routines instead of the generic relaxation\/deep-tissue split most chairs ship with.\u003c\/p\u003e\n\u003ch3\u003eWhy You'll Love the Sonoma 4D\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-Track 4D Mechanism\u003c\/strong\u003e — Genuine 4D depth, speed, and width modulation — same axis set as Kanji's flagship Shogun Duo, packaged into a single-track chassis at a meaningfully lower price.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJapanese Shiatsu Programs\u003c\/strong\u003e — Pre-programmed routines inspired by traditional Shiatsu — short bursts, varied pressure, no pre-warmup needed. Distinctly different feel from the standard Western relaxation programs you find on most American-market chairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSL-Track Coverage\u003c\/strong\u003e — Roller path runs from neck through lower glutes — full spinal coverage, no lumbar dead zone that single-track S-Track chairs leave.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhisper-Quiet Motor\u003c\/strong\u003e — Acoustic-dampened motor casing — the Sonoma is one of the quietest 4D chairs at any price, which matters if you're using it during evening household hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto Body Scan + Adjustable Roller Path\u003c\/strong\u003e — Body scan calibrates roller path to your spine; manual override lets you shift the path up or down if your tension zone sits outside the scanned range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero-Gravity + Full-Body Air\u003c\/strong\u003e — Multi-stage zero-gravity recline with comprehensive airbag coverage from shoulders through calves — full-body session, not just back-and-neck.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Specs at a Glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassage Mechanism:\u003c\/strong\u003e 4D variable-depth\/speed\/width rollers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack Type:\u003c\/strong\u003e SL-Track (neck through lower glutes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Scan:\u003c\/strong\u003e Auto body scan with manual roller-path override\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto Programs:\u003c\/strong\u003e Multiple preset routines including Japanese Shiatsu sequences\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecline:\u003c\/strong\u003e Multi-stage zero-gravity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Compression:\u003c\/strong\u003e Full-body — shoulders, arms, hips, calves\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat:\u003c\/strong\u003e Lumbar zone heat therapy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcoustic:\u003c\/strong\u003e Acoustic-dampened motor casing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 110V standard household outlet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Kanji manufacturer limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuilt for the Quality-First Buyer\u003c\/h3\u003e\n\u003cp\u003eThe Sonoma 4D is the chair we recommend when the buyer cares more about HOW the massage feels than about how many gimmicks the chair lists on the spec sheet. Kanji's engineering DNA is closer to the Japanese-domestic-market chairs than to the typical American import — the Shiatsu programs are noticeably different from the standard Western auto routines, and the quieter motor matters in a way that doesn't show up on a comparison chart. At $10,623.95 it's the entry into Kanji's 4D lineup; if you want twin-track coverage you step up to the Shogun Duo, but for a single-user household where one person is the primary user, the Sonoma 4D is one of the best single-track 4D values in the catalog. Pair it against a similarly priced Osaki and test both — the Kanji will feel more deliberate, the Osaki will feel more feature-loaded. Different audiences buy each.\u003c\/p\u003e\n\u003ch3\u003eWhy Buy from Peak Flow Fitness\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized Kanji dealer\u003c\/strong\u003e — every chair ships factory-fresh with full manufacturer warranty intact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree curbside shipping\u003c\/strong\u003e on every order — no hidden freight surcharge at checkout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhite-glove delivery available\u003c\/strong\u003e — in-room placement, unboxing, and packaging removal as a paid upgrade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinancing through Shop Pay\u003c\/strong\u003e — split orders into 4 interest-free payments, or 6–12 monthly with rates disclosed at checkout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrice match guarantee\u003c\/strong\u003e — find the same chair cheaper at an authorized dealer and we'll match it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUS-based support\u003c\/strong\u003e — Mon–Fri 9 AM–9 PM EST at 646-921-5221 or support@peakflowfitness.com.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kanji","offers":[{"title":"Black \/ White Glove Delivery (Installation)- $275 \/ 2 Year Extended(Parts\/Labor) - 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