The UE FLOW 660 Pro pairs a cushioned foam seat with a mesh back, and its arms set it apart: the pads fold open into a small desk, and the whole arm swings back to hold your elbows when you recline. Expect the best fit at about 160–185 cm, inside UE's 155–190 cm range.
- UE rates the FLOW 660 Pro for 155–190 cm, with tension settings for roughly 45 kg and 100 kg.
- The seat is 51 cm wide and 50.5 cm deep, slides 6 cm and sits 46.5–54.5 cm high.
- Cable paddles under the arm pads set seat height (right) and depth (left).
- The backrest reclines from 100° to 150°, per UE, and locks only upright; up to the knob's limit, it floats.
- The arm pads rotate 360°, fold open into a small tray and sit 61.5–76.5 cm off the floor.
- A lever under the seat frees or locks a 6° side-to-side seat sway.
- A mesh footrest pops out from under the seat; the 68 cm five-star base is polished aluminium.
Last updated October 2026. Specifications checked October 2026.
Where are the FLOW 660 Pro's seat height and depth controls?
On the UE FLOW 660 Pro, seat height and depth are set from chrome paddles under the arm pads: right for height, left for depth. Each pulls a cable, like a bike brake, so you don't bend down to change either.
For height, stand and squeeze to raise the seat, or sit and squeeze to lower it; let go anywhere.
The depth slide tends to stay put, with no spring pushing it back.
| Control | Where it is | What it does |
|---|---|---|
| Chrome paddles | Under the arm pads | Right: seat height. Left: seat depth, 6 cm of travel |
| Round knob | Under the seat, right side | Recline limit; fully forward locks the backrest upright |
| Small paddle | Just inside the knob | Tension: up for lighter, down for firmer |
| Lever | Under the seat, left side | 6° sway: push in to free it, pull out to lock it |
| Button | Under the seat front | Footrest out; press again and push home to stow |
| No button | Backrest and arms | Lift to raise; past the top, they drop to the lowest |
What can the FLOW 660 Pro's fold-out armrests do?
Each UE FLOW 660 Pro arm pad folds open into a small tray for a phone, tablet, drink or laptop, then closes back into an ordinary armrest. UE calls them Magic desk armrests. Treat the open tray as a shelf, not something to lean on.
The pad also rotates 360°, and each arm swings back or pivots in and out at its lower joint for narrow or broad frames.
Swinging back matters because the arms don't recline with the backrest: lie back towards 150° and your elbows leave the pads until you turn the arms back under them. Don't expect the pads to tilt up, either. These arms are still the main reason to choose it.
Does the FLOW 660 Pro's recline lock?
The UE FLOW 660 Pro's recline locks only upright, with the knob under the seat's right side turned fully forward. Turned back, it sets the recline limit, up to 150°. Inside that limit the backrest floats, holding where your back's push balances the spring: lean harder and it keeps going, ease off and it comes up. To stay half-reclined, set the knob to the stop you want and rest against it.
Tension is a small two-position paddle just inside the knob, not a dial: up for lighter, down for firmer, tuned by UE for roughly 45 kg and 100 kg. Sitters under about 45 kg may find even the light setting stiff.
Under the seat's right side sit the round recline-limit knob and, just inside it, the blue-marked tension paddle.
As you recline, the seat slides forward, a design meant to keep the lumbar pillow where it started, and the seat front tends to stay level under your thighs. If you need the backrest locked between the stops, this mechanism isn't built for it.
Is the FLOW 660 Pro good for lying back with the footrest?
Yes: press the button under the front of the UE FLOW 660 Pro's seat and a wide mesh footrest pops out; press again and push it home to stow it. There's usually room to cross your legs. Set the knob to its last stop and swing the arms back for a lie-back break.
Here the footrest sits low, near the floor, well below seat height.
How does the 6° seat sway work, and can you turn it off?
Push the lever under the left of the UE FLOW 660 Pro's seat in and the seat can rock about 6° side to side around its centre; pull it out and it sits still like any chair. UE calls it Taiji. Some like it for leaning over to write or reaching across a desk; others lock it and forget it. Treat it as an option, not a reason to buy.
Is the foam seat comfortable, and does it run hot?
The UE FLOW 660 Pro's moulded-foam seat is cushioned but supportive, and it runs warmer than mesh. Its woven fabric cover has a wide, rounded front edge with no hard rim. The mesh back breathes, but in an Australian summer the seat holds more heat than full mesh, and fabric is harder to spot-clean.
The back is Korean WINTEX mesh (per UE). Below it sits a separate curved lumbar pillow with no dial for depth or firmness; its height follows the backrest, which has 4 positions over about 5 cm. The push tends to feel moderate to firm.
The pillow sits in front of the main mesh, with the polished aluminium back support curving behind it.
Who does the FLOW 660 Pro fit?
Expect the UE FLOW 660 Pro to fit most sitters from about 160 to 185 cm; at either end of UE's 155–190 cm range, the headrest and seat height decide it.
| Height | What to expect | Our read |
|---|---|---|
| 155–159 cm | Lowest seat (46.5 cm) may be too high; headrest may press on the neck | Sit-test first |
| 160–169 cm | Seat lowest and shallowest; headrest may sit high | Usable; check the headrest |
| 170–185 cm | Room to spare in seat height and depth; headrest should reach | Good fit |
| 186–190 cm | Seat long enough; headrest may not rise far enough | Sit-test first |
| Over 190 cm | Beyond UE's range | See other ergonomic office chairs |
Moving the headrest back also lifts it, so lower it a touch afterwards.
UE gives no weight rating we can confirm, so we don't quote one. The 51 cm seat is broad, but the firm tension setting is tuned for about 100 kg: above that, sit in it in a showroom before you buy.
What is the FLOW 660 Pro made of?
The UE FLOW 660 Pro's back support, headrest bracket and five-star base are polished aluminium; the seat frame and arm pads are plastic. Each base leg has a broad tread for resting your feet, the castors are quiet PU, and UE says the Korean SHS gas cylinder is TÜV Rheinland certified and BIFMA tested.
Below the mount: a base leg's ribbed foot tread and the black twin-wheel castors.
Both Grey and Black keep these polished aluminium parts; the Black chair photographed pairs a black frame and mesh with a dark charcoal seat fabric.
How does it compare with other UE chairs and LiberNovo's Omni?
Against the UE FLOW 530 Pro and UE FLOW 550, the FLOW 660 Pro adds fold-out desk arms and the 6° sway; against LiberNovo's padded Omni backrests, it offers mesh and a separate lumbar pillow.
| Feature | UE FLOW 660 Pro | UE FLOW 530 Pro |
|---|---|---|
| Armrests | Pads fold into a tray, rotate 360°, swing back | 4D, button for height |
| Seat height and depth | Paddles under the arm pads | Switches at the sides of the seat |
| Recline controls | Outer knob: limit; inner paddle: tension | Reversed: outer knob tension, inner paddle recline |
| 6° seat sway | Yes | No |
| Footrest | Built in | None |
| Back support | Polished aluminium | Nylon |
| Seat width | 51 cm | 49.5 cm |
Our UE FLOW 530 Pro review covers its sliding seat and recline in detail.
The FLOW 550 shares the arm-pad paddles, a linked seat-and-back recline and the 46.5–54.5 cm seat height, but has 4D arms and a mesh or cushioned seat; if heat is the worry, try its mesh-seat version first in our UE range.
LiberNovo's Omni chairs, such as the LiberNovo Omni Gen, wrap the whole back in one padded piece; the 660 Pro's split mesh back aims more of its push at the lower back and tends to run cooler. Our best ergonomic office chairs guide covers the wider field.
What are the FLOW 660 Pro's real drawbacks?
The UE FLOW 660 Pro's main drawbacks are recline control, heat and fit at the ends of its range.
- The recline locks only upright; short of the knob's limit, it holds by balance alone.
- UE's two tension settings leave little room to fine-tune.
- The arms don't recline with you, so you swing them back by hand.
- The foam seat runs warmer than mesh and is harder to spot-clean.
- The lumbar pillow has no depth or firmness adjustment.
- Under about 160 cm or over about 185 cm, the headrest or seat height may not suit.
- UE gives no weight rating we can confirm, and there's no long-term wear record yet.
FAQ
Does the UE FLOW 660 Pro recline lock in place?
Only upright. Turn the knob under the right of the UE FLOW 660 Pro's seat fully forward to lock the backrest; turn it back to set the recline limit, up to UE's 150°. Short of that limit the backrest floats where your weight balances the spring.
Where are the seat height and depth controls on the UE FLOW 660 Pro?
Under the arm pads, where your hands rest. On the UE FLOW 660 Pro, the chrome paddle under the right pad sets seat height: stand and squeeze to raise, sit and squeeze to lower. The left paddle sets seat depth as you shift your weight.
Can the UE FLOW 660 Pro armrests hold a laptop?
Yes. Each arm pad on the UE FLOW 660 Pro folds open into a small tray for a laptop, tablet, phone or drink, then closes back into a normal armrest. Treat it as a shelf only: don't lean on the open tray to stand up.
Is the UE FLOW 660 Pro hot to sit on?
Warmer than a full-mesh chair. The UE FLOW 660 Pro's seat is moulded foam under woven fabric, which holds more heat than mesh in an Australian summer; the mesh back lets air through. If you run hot, try it beside our full-mesh office chairs first.
What height range does the UE FLOW 660 Pro suit?
UE rates the FLOW 660 Pro for 155–190 cm; expect the best fit at about 160–185 cm. Below that, the 46.5 cm lowest seat and the headrest can sit too high; above it, the headrest may not rise far enough. The seat slides 6 cm for longer thighs.
Where can you sit in the FLOW 660 Pro?
The UE FLOW 660 Pro is on the floor at both our Sydney showrooms, Sydney – Alexandria (Shop 2/644 Botany Rd, Alexandria NSW) and Sydney – South Granville (Unit 11, 46-50 Wellington Rd, South Granville NSW), and at our Melbourne showroom, Melbourne – Nunawading (Shop 1a/280 Whitehorse Rd, Nunawading VIC). Compare it there with chairs from UE, Herman Miller, LiberNovo, Sihoo and HBADA. Book a visit or simply walk in during opening hours; our specialists Mick, Donald, Garrett and Kevin can set it to your height while you sit. We deliver across Australia.
