Curated by Quick picks
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Show all 9 picks
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Best for big flat screensCheck price (opens in a new tab, affiliate link)
8. Ergotron HX (standard)
Best for: Heavy flat or gently curved screens up to 49"
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An ultrawide is the best upgrade I can think of for a gaming or streaming desk, but its stand eats half the desk. A good arm gives you that space back, as long as it can actually hold the thing. The big mistake is buying on screen size alone: weight is what matters, and a 49-inch super-ultrawide can weigh twice as much as a 34-inch. So I’ve sorted these by screen size, and every pick lists its weight range so you can check it against your monitor. (Here’s how we choose products.)
- Best for a 34-inch ultrawide: Ergotron LX (#1)
- Best budget 34-inch arm: BONTEC 13–34" (#3)
- Best for 38–45-inch screens: BenQ Ergo arm (#6)
- Best for a Samsung Odyssey G9: Ergotron HX HD (#7)
- Best for 57-inch screens and future dual setups: ULTRARM heavy duty (#9)
Compare all 9 picks
| # | Product | Best for | Key spec | Link |
|---|---|---|---|---|
| 1 | Ergotron LX Premium Monitor Arm (45-241-026)Best for 34-inch | 34-inch ultrawides up to 11.3kg | Up to 34" · 3.2–11.3kg · clamp and grommet mounts | Check price (opens in a new tab, affiliate link) |
| 2 | ErGear Single Monitor Arm, 13–34" (EGDMA69B)Easy tool-free mounting | Lighter 34-inch ultrawides on a budget | 13–34" · up to 9kg · tool-free VESA plate | Check price (opens in a new tab, affiliate link) |
| 3 | BONTEC Single Monitor Arm, 13–34" (MDM001A)Best budget 34-inch arm | Getting a 34-inch off the desk for less | 13–34" · up to 10kg · clamp 10–85mm | Check price (opens in a new tab, affiliate link) |
| 4 | VIVO Single Monitor Arm (STAND-V001)3-year warranty on a budget | Ultrawides up to 38" that stay put | Up to 38" ultrawide · up to 10kg (22lb) · pole mount | Check price (opens in a new tab, affiliate link) |
| 5 | Invision MX450 Monitor Arm (24–40")Best for 38–40-inch | Bigger ultrawides up to 15kg | 24–40" · 2–15kg · gas spring | Check price (opens in a new tab, affiliate link) |
| 6 | BenQ Ergo Monitor Arm (gas spring, up to 45")Best for 38–45-inch | Heavy ultrawides up to 45" and 20kg | Up to 45" · 2–20kg · steel desk plate | Check price (opens in a new tab, affiliate link) |
| 7 | Ergotron HX HD Heavy Duty Monitor Arm (45-647-216)Best for Samsung Odyssey G9 | 49-inch 1000R super-ultrawides | Up to 49" · 12.7–19.1kg · 1000R curve pivot · 10-year warranty | Check price (opens in a new tab, affiliate link) |
| 8 | Ergotron HX Heavy Duty Monitor Arm, standard pivot (45-475-216)Best for big flat screens | Heavy flat or gently curved screens up to 49" | Up to 49" · 9.1–19.1kg · VESA up to 200×200 | Check price (opens in a new tab, affiliate link) |
| 9 | ULTRARM Heavy Duty Monitor Arm for Ultrawide (MA20PW-S)Rated up to 57-inch | 57-inch screens and future dual setups | Up to 57" · up to 20kg (44lb) · modular, upgradable to dual or triple | Check price (opens in a new tab, affiliate link) |
1. Ergotron LX Premium Monitor Arm (45-241-026)
by Ergotron
Price & availability on Amazon.co.uk
Who it’s for: Anyone with a 34-inch ultrawide who wants the arm they’ll never have to think about again.
Verdict: The LX is the arm everyone else gets compared to, and for a 34-inch ultrawide it’s our pick. It covers 3.2–11.3kg, which takes in most 34-inch panels, lifts the screen up to 44cm above the desk and comes with both a clamp and a grommet mount.
What we like
- 3.2–11.3kg range covers most 34-inch ultrawides (check yours without its stand)
- 33cm of lift, 360° rotation and 75° of tilt (per the listing)
- Desk clamp for 10–60mm desks plus a grommet mount
Worth knowing
- Tops out at 34 inches – bigger ultrawides need the HX (#7 or #8)
Key specs
- Screen size
- Up to 34"
- Weight range
- 3.2–11.3kg
- VESA
- 75×75, 100×100
- Desk clamp
- 10–60mm (grommet up to 57mm)
- Lift
- 33cm
Source: Amazon UK product listing (seller-provided details), checked 6 October 2026.
2. ErGear Single Monitor Arm, 13–34" (EGDMA69B)
by ErGear
Price & availability on Amazon.co.uk
Who it’s for: Budget buyers with a lighter 34-inch ultrawide who want a full-motion arm without a fiddly install.
Verdict: A good-value, full-motion arm for lighter 34-inch screens. The tool-free VESA plate makes mounting the monitor easy, and you get a big tilt range (+80° to -50°) plus tidy clip-on cable management. Just check your screen’s weight: the 9kg limit rules out some heavier 34-inch panels.
What we like
- Tool-free VESA plate for quick mounting (per the listing)
- +80°/-50° tilt, ±90° swivel and 360° rotation
- Clamp fits 0.99–6.5cm desks, grommet up to 7.5cm
Worth knowing
- 9kg limit – lower than the other 34-inch picks, so weigh your monitor first
- No warranty length given on the listing
Key specs
- Screen size
- 13–34"
- Max weight
- 9kg
- VESA
- 75×75, 100×100
- Desk clamp
- 0.99–6.5cm (grommet 0.99–7.5cm)
- Height
- Up to 17.5"
Source: Amazon UK product listing (seller-provided details), checked 6 October 2026.
3. BONTEC Single Monitor Arm, 13–34" (MDM001A)
by BONTEC
Price & availability on Amazon.co.uk
Who it’s for: Anyone who just wants their 34-inch ultrawide off its stand and up at eye level without spending much.
Verdict: If you just want the monitor off its stand and at the right height, this does the job for not much money. It takes up to 10kg, has a long 425mm height range and a clamp that fits desks from 10mm to a chunky 85mm. Tilt is limited to ±15°, so it’s more ‘set it and forget it’ than an arm you move about all day.
What we like
- Up to 10kg on a budget arm (per the listing)
- Clamp and grommet both fit 10–85mm desks, handy for thick desktops
- 425mm of height adjustment and 360° rotation
Worth knowing
- Only ±15° of tilt
- No warranty length given on the listing
Key specs
- Screen size
- 13–34"
- Max weight
- 10kg
- VESA
- 75×75, 100×100
- Desk clamp
- 10–85mm
- Tilt
- ±15°
Source: Amazon UK product listing (seller-provided details), checked 6 October 2026.
4. VIVO Single Monitor Arm (STAND-V001)
by VIVO
Price & availability on Amazon.co.uk
Who it’s for: People who set their monitor once and leave it, and want a simple, sturdy steel arm with a solid warranty.
Verdict: A really popular, no-fuss option. It’s a pole-mounted steel arm, so you set the height on the pole rather than gliding it about on a gas spring, but it handles ultrawides up to 38 inches and 10kg (22lb). The 3-year warranty is a nice bit of reassurance at this price.
What we like
- Rated for ultrawides up to 38 inches (per the listing)
- 3-year manufacturer warranty
- +90° to -90° tilt, 360° swivel and rotation
Worth knowing
- Pole-mounted, not gas spring – less smooth to reposition
- 10kg (22lb) limit, so not for heavy 38-inch panels
Key specs
- Screen size
- Up to 32" regular, 38" ultrawide
- Max weight
- 10kg (22lb)
- VESA
- 75×75, 100×100
- Type
- Pole-mounted
- Warranty
- 3 years (listing)
Source: Amazon UK product listing (seller-provided details), checked 6 October 2026.
5. Invision MX450 Monitor Arm (24–40")
by Invision
Price & availability on Amazon.co.uk
Who it’s for: Anyone with a 34–40-inch ultrawide who wants smooth gas-spring movement from a UK brand.
Verdict: A strong mid-range pick from a UK brand. The gas spring takes 2–15kg, so it handles heavier 34-inch and 38-inch ultrawides that the budget arms can’t, and the +85°/-30° tilt is more range than you’ll probably ever use. Invision also offers a ‘Compatibility Promise’ if you’re not sure your screen will fit.
What we like
- Gas spring for smooth, tool-free positioning (per the listing)
- Rated 24–40 inches, with a wide weight range
- UK brand with a 2-year warranty and a compatibility promise
Worth knowing
- Not rated for 45–49-inch super-ultrawides on the listing
Key specs
- Screen size
- 24–40"
- Weight range
- 2–15kg (Invision)
- VESA
- 75×75, 100×100
- Tilt
- +85°/-30°
- Warranty
- 2 years (listing)
Source: Amazon UK product listing (seller-provided details), checked 6 October 2026.
6. BenQ Ergo Monitor Arm (gas spring, up to 45")
by BenQ
Price & availability on Amazon.co.uk
Who it’s for: Streamers and gamers with a big 38–45-inch ultrawide who want a big-brand arm that’ll also hold a webcam or light bar.
Verdict: BenQ knows monitors, and this arm covers a lot of ground: anything up to 45 inches and 2–20kg. Streamers will like that the listing says it holds a webcam and light bar too. It also comes with a steel reinforcement plate, so you can clamp it to a thinner or glass desk without damaging it.
What we like
- 2–20kg range covers most 38–45-inch ultrawides (per the listing)
- Steel reinforcement plate protects thin or glass desks
- Listing says it holds a webcam and light bar
- Quick-release VESA plate and a 2-year warranty
Worth knowing
- Not rated for 49-inch super-ultrawides
Key specs
- Screen size
- Up to 45"
- Weight range
- 2–20kg
- VESA
- 75×75, 100×100
- Height
- 8.7–18.7"
- Warranty
- 2 years (listing)
Source: Amazon UK product listing (seller-provided details), checked 6 October 2026.
7. Ergotron HX HD Heavy Duty Monitor Arm (45-647-216)
by Ergotron
Price & availability on Amazon.co.uk
Who it’s for: Anyone with a 49-inch super-ultrawide like the Samsung Odyssey G9 who wants it mounted properly, once.
Verdict: This is the arm the 49-inch crowd ends up with. The listing names the Samsung Odyssey G9 directly, and it comes with the heavy-duty pivot those deep-curve 1000R screens need, rated for 12.7–19.1kg. It’s a big spend, but it’s an Ergotron with a 10-year warranty holding a very expensive monitor. That’s money well spent.
What we like
- Listing names the Samsung Odyssey G9 as compatible
- HD pivot for 1000R curved screens included in the box
- 12.7–19.1kg range for the heaviest ultrawides
- 10-year warranty (per the listing)
Worth knowing
- 12.7kg minimum – too strong for lighter screens, which won’t stay put
- Only 20° of tilt, because of the heavy-duty pivot
- A premium-priced arm
Key specs
- Screen size
- Up to 49"
- Weight range
- 12.7–19.1kg
- Curve
- 1000R (HD pivot)
- VESA
- 75×75, 100×100
- Desk clamp
- 1–6.6cm
- Warranty
- 10 years (listing)
Source: Amazon UK product listing (seller-provided details), checked 6 October 2026.
8. Ergotron HX Heavy Duty Monitor Arm, standard pivot (45-475-216)
by Ergotron
Price & availability on Amazon.co.uk
Who it’s for: People with a big, heavy screen that’s flat or only slightly curved, including monitors with larger VESA patterns.
Verdict: The same heavy-duty HX arm with the standard pivot. That gives you more tilt (75°) and support for larger VESA patterns up to 200×200, which suits big flat monitors and gently curved ultrawides. If yours is a deep-curve G9, get the HD version above: the listing says the G9 needs the separate heavy-duty pivot.
What we like
- 9.1–19.1kg, a slightly lower minimum than the HD version
- Fits VESA 75, 100, 200×100 and 200×200 (per the listing)
- 75° of tilt and a 10-year warranty
Worth knowing
- Not for 1000R screens like the Odyssey G9 without the extra HD pivot
- Still too strong for light monitors under 9.1kg
Key specs
- Screen size
- Up to 49"
- Weight range
- 9.1–19.1kg
- VESA
- 75×75, 100×100, 200×100, 200×200
- Tilt
- 75°
- Warranty
- 10 years (listing)
Source: Amazon UK product listing (seller-provided details), checked 6 October 2026.
9. ULTRARM Heavy Duty Monitor Arm for Ultrawide (MA20PW-S)
by ULTRARM
Price & availability on Amazon.co.uk
Who it’s for: Owners of the very biggest ultrawides, like 57-inch dual-4K panels, or anyone planning to stack a second screen later.
Verdict: The pick for the really big screens: the listing rates it for ultrawides up to 57 inches and 20kg (44lb), curved down to 1000R. The clever bit is the modular base, which can be upgraded later to hold two stacked 49-inch ultrawides or a triple setup. That makes it a good long-term buy if your desk keeps growing.
What we like
- Rated for screens up to 57 inches and 20kg (per the listing)
- Modular: upgradable to dual or triple monitors
- 13 inches of gas-spring height adjustment and a quick-release VESA plate
- 2-year manufacturer warranty
Worth knowing
- Only ±25° of tilt and 180° of rotation
- A big, tall arm – overkill for a 34-inch
Key specs
- Screen size
- 24–57"
- Max weight
- 20kg (44lb)
- Curve
- Up to 1000R (listing)
- VESA
- 75×75, 100×100
- Desk clamp
- 0.6–3.3" (grommet 0.6–1.9")
- Warranty
- 2 years (listing)
Source: Amazon UK product listing (seller-provided details), checked 6 October 2026.
FAQ
How do I know if a monitor arm will hold my ultrawide?
Check three things: your monitor’s weight without its stand (it’s on the manufacturer’s spec sheet), its VESA pattern (usually 75×75 or 100×100) and the arm’s weight range. The screen size on the box matters less than the weight.
What's the best monitor arm for a Samsung Odyssey G9?
The Ergotron HX HD (#7). Its listing names the Odyssey G9 directly and it includes the heavy-duty pivot that 1000R screens need. The standard Ergotron HX (#8) needs a separate HD pivot for the G9.
Can a monitor arm be too strong for my screen?
Yes. Heavy-duty arms have a minimum weight too: 12.7kg for the Ergotron HX HD, for example. A light monitor on a strong gas spring will drift upwards and won’t stay where you put it.
Can I rotate an ultrawide to portrait on an arm?
Physically, sometimes, but many arms limit it. Check the listing for any rotation limit before you plan on it. In practice, very few people run a 34-inch or wider ultrawide in portrait.
Will a monitor arm fit my desk?
Check the clamp range against your desk thickness, and make sure there’s no frame or crossbar under the edge where the clamp goes. Most picks here also include a grommet mount if your desk has a cable hole.
