
A side-by-side look at the Varidesk Pro Plus and the S2S Sit-to-Stand Workstation - lift action, monitor capacity, footprint, and which one fits a deep vs shallow desk.
Standing desk converters drop onto an existing desk and let you raise your monitors and keyboard to standing height without replacing the whole workstation. Two products dominate this category for office workers: the Varidesk Pro Plus (now sold as Vari ProDesk converters) and the S2S Sit-to-Stand Workstation from ESI. Both sit on top of a regular desk, both hold a monitor and keyboard, and both have devoted followings. They differ in lift mechanism, surface layout, footprint, and who they fit best.
This guide compares the two on the things that actually drive a buying decision: lift action, capacity, footprint, ease of setup, and the kind of workstation each one is built for.
Neither is a "better desk" - they solve the same problem with different geometry.
The lift mechanism is the biggest functional difference between the two.
Varidesk Pro Plus. Spring-assisted X-lift. Squeeze the two handles on the sides, the gas springs do most of the lifting, and the platform rises in an arc toward you. It's fast - one motion, no cranking, no waiting. The arc means the top surface moves both up and slightly forward as it rises, so you need a few inches of clear space in front of the desk.
S2S Sit-to-Stand Workstation. Vertical-column lift. The platform rises straight up on a center post, with no forward arc. Older S2S units use a manual handle or pin-and-hole adjustment; newer ESI-branded units offer electric height adjustment with memory presets. The travel is slower than a Varidesk squeeze, but the platform doesn't intrude into your seated space when raised.
If your desk sits flush against a wall and you can't give up forward clearance, the S2S geometry is easier to live with. If you want the fastest possible sit-to-stand transition during a workday, the Varidesk wins.
Varidesk Pro Plus 36 ships with a 36-inch-wide top surface and a separate lower keyboard tray. Two-monitor setups fit cleanly, and the lower tray keeps your wrists at a neutral height when standing. The Pro Plus 48 stretches the top to 48 inches for wider monitor pairs or a monitor-plus-laptop combo. Both hold the typical office payload - two monitors, a docking station, and accessories - without sag.
S2S Sit-to-Stand Workstation uses a single flat platform rather than a split top/keyboard tray. Published specs for the ESI S2S desktop variant list a base footprint around 25" deep by 35" wide, with a height range from roughly 6" to 22" above the desk and a weight capacity around 35 lbs. That capacity is enough for one monitor plus a laptop or a single large monitor, but two heavy monitors with a docking station will push it.
The single-surface design is closer to working on a regular desk - you don't move between two tiers - but it also means your keyboard and monitor rise the same distance, so you may need a separate monitor riser on top of the platform to keep the screen at eye level when standing.
Both units ship pre-assembled in the sense that the lift mechanism is one piece. You unbox, place it on the desk, and start using it.
Day-to-day adjustment goes to Varidesk for raw speed - squeeze, lift, release. The S2S wins for precision and for shared-desk scenarios where two users want saved heights.
This is where the two products diverge most for real workspaces.
The Varidesk Pro Plus uses an X-lift that needs forward swing space - plan on 4-6 inches of empty desk in front of the unit when it's down, and the top moves forward when raised. The base sits back against the rear of the desk and the platform extends toward you.
The S2S uses a vertical column. The base is more compact front-to-back and the platform stays directly above it through the full lift. On a deep desk, this means less wasted space behind the unit; on a shallow desk, it can feel less roomy when seated because the column occupies the area between you and the monitor.
Measure your desk depth before choosing. Anything under 28 inches deep makes the Varidesk arc awkward; anything over 30 inches gives the S2S enough room to breathe.
Both brands sit in the premium converter tier rather than the budget end. Exact pricing changes year to year and depends on size and electric vs manual options - check the manufacturer's current listings before committing. As a rough placement: the Varidesk Pro Plus 36 and the manual S2S have historically been close in price, with electric S2S variants and the Pro Plus 48 at the higher end.
Cheaper converters exist (under-$200 spring lifts from generic brands), but the Varidesk and S2S are built to handle a full multi-monitor office payload for years. If your work depends on the desk being reliable, the price gap over a no-name converter is worth it.
Varidesk (Vari) offers a multi-year limited warranty on the lift mechanism and a satisfaction-guarantee return window - check current terms on the Vari site, since they update annually. Customer service has a long track record of replacing failed gas springs without much friction.
ESI, the manufacturer behind current S2S Sit-to-Stand units, offers a comparable limited warranty backed by an industry-standard return policy through authorized dealers. Both companies handle B2B fleet purchases routinely, so warranty service is set up for office rollouts as well as single buyers.
Start with three questions before you choose:
Neither product replaces a full electric sit-stand desk, but for the price of a single desk replacement you can outfit two or three workstations with converters - which is why both still sell into corporate offices ten-plus years after launch.

Vari-branded converters (the brand was renamed from Varidesk in 2018) are built for office use, with a multi-year limited warranty on the lift mechanism. The gas-spring lift has a long service record and the company replaces failed springs under warranty. Build quality sits at the premium end of the desktop-converter market rather than the budget tier.
No. Vari surfaces are heavy-duty laminate over an engineered core, including the Reclaimed Wood finish which has a wood-look texture but is still laminate. The laminate is rated for daily office use and resists scratching and staining.
Capacity varies by model. The Pro Plus 36 and Pro Plus 48 are rated to hold a typical two-monitor office payload plus a laptop and accessories. Check the model spec sheet for the exact figure before loading heavy equipment, and keep the load balanced front-to-back so the spring lift travels evenly.
Published specs for the ESI S2S desktop unit list a lift range of about 6 inches to 22 inches above the desk, with a base footprint around 25 inches deep by 35 inches wide and a working weight capacity around 35 lbs. Newer electric variants offer memory presets for shared workstations.
Measure first. The Varidesk uses an X-lift that swings the platform forward as it rises, so you need 4-6 inches of clear desk in front of the unit and ideally a desk depth of 28 inches or more. The S2S uses a vertical-column lift with a more compact base, which makes it the better choice on a desk under 28 inches deep.
Written by
Sarah Doan, OTOccupational therapist and ergonomics consultant. Twelve years certifying workstations across hospitals, studios, and remote-first companies.

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