Medical Breakthrough Model X vs Model 8: Which Massage Chair to Buy (2026)

Medical Breakthrough Model X vs Model 8: which massage chair should you buy? You are about to spend $8,000 to $10,000 on one chair, and the two models look almost the same in photos. It's hard to tell what the extra $2,000 for the X really buys. This guide lines up the published specs side by side, explains what the X adds, and clears up the "8 Plus" name you may have seen in search results.

At Selected Comfort, we help families choose massage chairs, lift chairs and home wellness equipment, and we talk buyers through these exact two chairs every week. Both are in our Medical Breakthrough collection, along with the Model 7 Plus, 6 Plus, 5 V3 and 5 V2. Every spec below comes from the maker's product pages or our store listing. Where a number isn't published, we say so.

Model X vs Model 8: specs side by side

On paper, the two chairs share the same frame size, air cell count, height range and warranty. The real differences are the second set of back rollers on the X, its extra programs, a heavier build and a $2,000 higher price.

Swipe the table sideways on mobile. Specs from medicalbreakthrough.com product pages and selectedcomfort.com prices as of October 2026. Some retailers list an X "Version 3.0" at 34" W x 49" H x 55" D and 384 lbs, so ask us which version ships before you measure.

What the Model X adds over the Model 8

The X keeps everything the Model 8 has and adds a second set of back rollers plus seven more named programs. If neither of those matters to you, the extra $2,000 buys you very little.

Two sets of back rollers

This is the headline feature. Most massage chairs, including the Model 8, have one roller unit that travels up and down your back. The X has two separate sets. The brand describes one set working your neck and shoulders while the other works your lower back, at the same time.

In daily use, you don't wait for the rollers to travel between your shoulders and waist. If your tension sits in both places, this is the feature that makes the X feel different from the 8.

Seven extra programs

The brand numbers its features. The Model 8 lists features up to No. 23; the X adds 24 to 30:

• Two-roller "8 hands" massage (the dual back rollers above)
• Hot Stone Massage: steady warmth with firm pressure, focused on the back and waist
• Baby Hands: a very soft setting for people who find deep pressure too much
• Bedtime Treatments: a 30-minute wind-down program
• Focused Back & Spine: narrower roller work that traces the spine down to the tailbone
• Soothing Muscle Building: kneading, tapping and compression across neck, back, knees and feet
• 4 Hour Energy: a short, strong session for a pick-me-up

A heavier build

The X weighs 435 lbs on the brand's spec sheet, about 31 lbs more than the Model 8 at 404 lbs. The extra weight matters for stairs, upper floors and older flooring, so plan delivery with that in mind.

What both chairs share

Almost everything else is the same. The Model 8 already includes the brand's full air compression system, foot rollers, zero gravity sleep position and recliner cushions.

• 167+ air cells that wrap the arms, hips, legs and feet
• Zero Gravity Sleep System: air bags help settle you into a reclined, legs-up position
• Cloud Cushions that turn the chair into a regular recliner when you just want to sit
• Extreme Customization: 5 intensity levels, 5 speeds and 3 roller widths (wide, medium, narrow)
• Foot system: 3 rows of sole rollers, 20+ leg air cells and power-lift leg rest
• Engulfed arm massage covering the arms, hands and fingers
• Bluetooth speakers for music or spa sounds
• Steel back roller frame the brand describes as triple-welded
• 3-year warranty with in-home repair visits, per the brand

Both chairs are also part of our zero gravity massage chairs range. If you're still learning what zero gravity means in a massage chair, our guide to the best zero gravity massage chair explains it in plain English.

Is there a Medical Breakthrough 8 Plus?

Yes, the name exists, but not on Medical Breakthrough's own website. Some retailers sell a "Medical Breakthrough 8 Plus - Open Feet" version. The maker's site lists only the 5, 6, 7, 8 and X in its main series, and an 8 Plus product page there does not exist.

The 8 Plus listing we checked shows the same 404-lb weight and 36" x 53" x 52" upright size as the Model 8. It doesn't explain how it differs from the standard 8, and its listed price was higher than our Model X.

Selected Comfort does not sell the 8 Plus. If you searched for "Medical Breakthrough X vs 8 Plus," the useful comparison for most buyers is the X against the standard Model 8. If you want a "Plus" model from this brand, we carry the Model 7 Plus L-Track ($7,599) and the Model 6 Plus.

Who should buy which chair

Buy the Model X if you want your neck and lower back worked at the same time, or if someone in the house needs a very gentle program. Buy the Model 8 if you mainly want full-body air compression, foot work and zero gravity, and would rather keep $2,000.

Choose the Model X if…

• You carry stiffness in your neck, shoulders and lower back, and hate waiting for the rollers to move between them
• Two people of very different tastes will share the chair (one likes it strong, one wants Baby Hands)
• You like the idea of a warm, hot-stone style program on the back and waist
• Your floor and doorways can handle a 435-lb chair

Choose the Model 8 if…

• Air compression, foot rollers and zero gravity are what you want most
• You are happy adjusting intensity, speed and roller width yourself rather than using extra preset programs
• You would rather put $2,000 toward delivery, a room refresh or another family member's needs

Still weighing other brands too? Our best massage chair guide compares these chairs against Kahuna and Infinity models across every budget.

Before you order: room, size and delivery checklist

Because both chairs share the same listed footprint, the room checks are the same for either one. Do these five steps before you place the order.

1. Measure the space reclined. Allow at least 36" of width and 72" of depth for the fully reclined chair, plus a little room to walk around it.
2. Check every doorway and turn. The chair is 36" wide on the spec sheet. Measure doors, hallways and stair turns on the delivery path.
3. Check the floor. At 404 to 435 lbs before anyone sits in it, think about upper floors, soft flooring and rugs.
4. Confirm the user's height and weight. The brand says 4' to 6'5". Retailers list 300 lbs as the weight limit, so ask us to confirm if you're close.
5. Find a standard outlet. Both run on AC 120V, 60Hz, so a normal U.S. wall outlet works. Avoid long extension cords.

The bottom line

The Medical Breakthrough Model X and Model 8 share the same size, air cells, foot system, height range and 3-year warranty. The X adds a second set of back rollers and seven extra programs for $2,000 more. If you want your shoulders and lower back worked at the same time, or need a very gentle setting for someone in your home, the X is the one to buy.

For everyone else, the Model 8 delivers most of what makes this brand stand out at a lower price. To see the whole lineup, browse our full massage chairs collection.

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