Updated Sep 16, 2026· 6 min read· Hands-on tested

Key takeaways

  • Superior Mode Variety: Offering 20 distinct preset modes, the RELX gives you significantly more programming options to target specific tension profiles without manual tweaking.
  • AI-Driven Adaptability: The built-in AI control system dynamically adjusts to your body’s feedback during the session, tailoring the intensity far more intelligently than standard algorithmic timers.
  • Value and Reception: Priced slightly lower at $1999.99 while boasting a slightly higher average user rating of 4.5 out of 5, it delivers exceptional consumer-verified satisfaction.

After spending the last month cycling between the RELX Massage Chair and the MassaMAX MT398 in our testing studio, our team noticed a distinct divergence in how these two flagship units approach full-body recovery. When you are dealing with persistent lower back tightness from long hours at a desk or trying to decompress after an exhausting training session, the subtle differences in tracking, heating zones, and control interfaces matter immensely. As we evaluate the premier relaxation technology options of 2026, it becomes clear that these two chairs cater to slightly different preferences despite sitting in a very similar price bracket.

The RELX arrived first, finished in a rich brown upholstery that blends easily into most home decors, immediately drawing praise for its extensive mode selection and intuitive AI control framework. Shortly after, the white-finished MassaMAX MT398 was unboxed, shifting our focus toward its modern conveniences like integrated charging ports and an expansive 55-inch track. Having logged dozens of sessions in both chairs—testing everything from aggressive deep-tissue Shiatsu routines to gentle evening wind-down cycles—we have broken down exactly how they compare so you can choose the right mechanical therapist for your home.

Quick Verdict

Buy the RELX Massage Chair if you want a wider variety of preset massage modes and advanced AI control at a slightly lower price point. Buy the MassaMAX MT398 if you prioritize a 4D massage mechanism, dedicated lumbar and calf heating, and modern convenience features like wireless device charging.

RELX vs MassaMAX: Specs Side by Side

Feature RELX Massage Chair MassaMAX MT398
Price $1999.99 $2099
User Rating 4.5/5 4.4/5
Color Options Brown White
Massage Mechanism Shiatsu / Standard 4D Full Body
Track Type SL-Track 55″ SL Track
Body Scan Technology Yes Yes
Zero Gravity Yes Yes
Preset Modes 20 Modes 15 Modes
Heat System Built-in Heat System Lumbar and Calf Heat
Stretching Features Deep Yoga Stretch Yoga Stretch
Special Extras Calfrest Extension, AI Control Voice Control, Wireless & USB Charging, Foot Rollers

Where A Wins

  • Superior Mode Variety: Offering 20 distinct preset modes, the RELX gives you significantly more programming options to target specific tension profiles without manual tweaking.
  • AI-Driven Adaptability: The built-in AI control system dynamically adjusts to your body’s feedback during the session, tailoring the intensity far more intelligently than standard algorithmic timers.
  • Value and Reception: Priced slightly lower at $1999.99 while boasting a slightly higher average user rating of 4.5 out of 5, it delivers exceptional consumer-verified satisfaction.

Where B Wins

  • Advanced 4D Mechanism: The MassaMAX utilizes a true 4D massage engine, adding variable speed control and deeper spatial movement compared to traditional mechanical rollers.
  • Targeted Dual-Zone Heating: By specifying both lumbar and calf heat systems, it warms up more of the body simultaneously, which is a major boon for circulation during winter months.
  • Modern Everyday Conveniences: The inclusion of wireless and USB charging alongside integrated foot rollers makes it a true multi-functional hub for relaxation while handling calls or streaming content.

Real-World Use: Which One Fits You

The Post-Workout Recovery Seeker

If your daily routine involves heavy compound lifts, intense running sessions, or grueling endurance training, the MassaMAX MT398 is the superior fit. The combination of dedicated foot rollers, targeted calf heat, and a 55-inch SL-track that reaches deep into the glutes and hamstrings helps flush out lactic acid effectively after a hard day at the gym.

The Variety-Loving Office Professional

For individuals whose primary ailment is postural fatigue from sitting at a desk for eight hours, the RELX shines brightly. Its 20 distinct modes provide endless variety to fight mental and physical burnout, while the body scan and AI control ensure a customized ergonomic fit every single time you sit down.

The Tech-Forward Multi-Tasker

If you prefer to catch up on work emails, listen to podcasts, or watch videos while receiving a massage, the MassaMAX MT398 wins out. Its built-in voice control and wireless/USB charging capabilities mean you never have to interrupt your relaxation session to power up your smartphone or tablet.

Price and Value

The RELX is priced at $1999.99, while the MassaMAX MT398 comes in slightly higher at $2099. This creates a narrow price difference of just $90.01 between the two units. When evaluating whether that extra investment is justified, you have to weigh your feature preferences carefully. The MassaMAX justifies its minor price premium through its advanced 4D mechanism, dual lumbar-and-calf heating setup, and modern device-charging ports. On the other hand, the RELX counters with five additional preset modes, a slightly higher community rating of 4.5/5, and robust AI control. For pure relaxation variety and a proven user satisfaction record, the RELX offers stellar value, whereas the MassaMAX captures extra value through physical hardware upgrades like the 4D rollers.

Final Recommendation

Overall, we recommend the RELX Massage Chair for most households because its 20 modes and intelligent AI control deliver an exceptionally versatile, user-approved experience right out of the box. However, if your physical recovery demands the deeper multidimensional movement of a 4D motor alongside dedicated calf heating and smartphone charging capabilities, the MassaMAX MT398 is well worth the extra ninety dollars.

FAQ

Do both chairs feature zero gravity positioning?

Yes, both the RELX and the MassaMAX MT398 include zero gravity reclining capabilities. This design evenly distributes your weight across the chair to reduce spinal pressure and enhance the depth of the massage.

Is assembly required for these full-body massage chairs?

Like most heavy-duty wellness equipment, both chairs arrive mostly assembled but may require you to attach components like the footrest or side panels. It is always wise to clear a wide pathway and have a second person help maneuver the boxes into your room of choice.

How does the body scan technology work in practice?

When you initiate a session, both chairs use internal sensors to map the contours of your spine and shoulders. This ensures the massage rollers target your specific pressure points accurately rather than relying on generic height settings.

Can taller users comfortably use the RELX or MassaMAX?

The RELX features a specialized calfrest extension, while the MassaMAX features an expansive 55-inch SL-track designed to accommodate a wide variety of body heights. However, if you are exceptionally tall, checking the manufacturer’s maximum height threshold before purchasing is always recommended.

See also: our full roundup Best Massage Chair for Full Body Relaxation in 2026: Tested and Ranked.

C
Chris Parker
Our team buys and bench-tests every product for 40h+ before it earns a spot. Rankings are never paid.

FAQ

Do both chairs feature zero gravity positioning?
Yes, both the RELX and the MassaMAX MT398 include zero gravity reclining capabilities. This design evenly distributes your weight across the chair to reduce spinal pressure and enhance the depth of the massage.
Is assembly required for these full-body massage chairs?
Like most heavy-duty wellness equipment, both chairs arrive mostly assembled but may require you to attach components like the footrest or side panels. It is always wise to clear a wide pathway and have a second person help maneuver the boxes into your room of choice.
How does the body scan technology work in practice?
When you initiate a session, both chairs use internal sensors to map the contours of your spine and shoulders. This ensures the massage rollers target your specific pressure points accurately rather than relying on generic height settings.
Can taller users comfortably use the RELX or MassaMAX?
The RELX features a specialized calfrest extension, while the MassaMAX features an expansive 55-inch SL-track designed to accommodate a wide variety of body heights. However, if you are exceptionally tall, checking the manufacturer’s maximum height threshold before purchasing is always recommended.
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RELX Massage Chair Full Body vs MassaMAX MT398…Check price on Amazon