The Barista Express and the Barista Pro are the same shape of machine: a 54 mm portafilter, a conical burr grinder in the case, a steam wand you work yourself. The £100 between them buys a faster heater, twice the grind steps and an LCD. It also changes the shape of the box on your counter, and that is usually the row that settles it.
Where the two differ
| Barista Express (SES875) | Barista Pro (SES878) | |
|---|---|---|
| Heating system | thermocoil | ThermoJet |
| Heat-up time | not published by Sage | 3 seconds |
| Grind settings | 16 | 30 |
| Width x depth x height | 318 x 351 x 404 mm | 408 x 350 x 332 mm |
| Counter area used | 1,116 cm² | 1,428 cm² |
| Rated power | 1,850 W | 1,650 W |
| Interface Sage lists | simple button control, with a pressure gauge for Extraction Feedback | Intuitive LCD Interface, screen and buttons |
| Descale interval | every 90 days at water hardness 4, every 60 days at hardness 6 | no fixed interval published; the LCD raises a DESCALE alert |
| Water filter interval | 90 days or 40 L | 3 months |
| UK price, checked 21 September 2026 | £499.95 | £599.95 |
Everything else on the two sheets matches: 54 mm portafilter, single and dual wall baskets in one and two cup, an integrated 54 mm tamper, a 15 bar pump, PID, steel conical burrs, a 250 g hopper, a 2 L removable tank, a manual steam wand, the ClaroSwiss filter, auto-off after 30 minutes and a two year UK guarantee.
Width against height
The Express is 318 mm wide and 404 mm tall. The Pro is 408 mm wide and 332 mm tall. Depth is a draw at 351 mm and 350 mm.
So the Express costs you 312 cm² less counter, 1,116 cm² against 1,428 cm², which is 28 percent less area. It buys that back in the air above it, standing 72 mm taller. Both are filled through a hopper lid on the top, and Sage publishes no lid-open height for either, so leave room above the printed figure on whichever you pick.
Measure the gap under your wall units before anything else. The 90 mm of extra width on the Pro is usually easier to find than the 72 mm of extra height on the Express.
Three seconds against a figure Sage does not print
The Pro’s manual states the ThermoJet system “achieves ideal extraction temperature in 3 seconds”. Sage gives the Express a “Thermocoil system” and publishes no heat-up time for it, so there is no honest figure to set beside the three.
That gap matters more than it looks, because both machines switch to auto-off after 30 minutes. A second coffee two hours later starts cold on either one, so whatever the Express’s warm-up is, you meet it every time rather than once a day.
Sixteen grind steps against thirty
Both grinders use steel conical burrs and a 250 g hopper feeding the same 54 mm basket, so the difference is adjustment, not hardware. Sage’s settings list for the Barista Express reads “Adjustable Grind Amount & Manual over-ride.” and “Single or Double Shots”; the list for the Barista Pro adds “1 & 2 Cup Volumetric Control” alongside its “Intuitive LCD Interface”.
Thirty steps put roughly twice as many stops between a grind that runs fast and one that chokes the machine. Buy one bag of beans and keep to it and sixteen is plenty. Change roasters often and each change is a dial-in, which finer steps make shorter.
Upkeep, and a water filter with a batch number
The Barista Express instruction manual gives a calendar: descale every 90 days at water hardness level 4, every 60 days at level 6, dissolving one Sage Descaling powder sachet in one litre of hot tap water. The Barista Pro instruction manual sets no interval and leaves it to the DESCALE alert on the screen. Your own manual wins if it differs from either.
The filters diverge too. The Express manual says replace after 90 days or after 40 L; the Pro manual says replace after 3 months. Both take the same part, but Sage’s ClaroSwiss water filter listing states it fits the Barista Express from Batch 1735 and up, with earlier units taking Sage’s separate Charcoal Water Filter. The Pro carries no such caveat. Check the batch number on an Express before ordering filters for it.
In the box, both include a dosing funnel, the Razor dose trimming tool, an integrated tamper and a milk jug. The Express adds a cleaning disc and tablets, a cleaning brush, tool and Allen key, and a water filter holder; the Pro lists a 480 ml jug and a cleaning kit.
Choose the Barista Express if
Your counter is short of width, or £100 is better spent on beans. You get the same basket, pump, PID and two year guarantee, plus a published descale calendar rather than an alert, and a pressure gauge to read while the shot runs.
Choose the Barista Pro if
You have 408 mm of width but not 404 mm of height, or you start from cold more than once a day. Three seconds to temperature is a published figure and the Express’s is not published at all. Thirty grind steps and the LCD come with it.
