Quick Answer: Amantii’s Symmetry Bespoke 60” ($3,399, list $4,593.24) and SimpliFire’s Scion 55” (SimpliFire’s own site lists it starting at $2,099 for the unit, dealers running up to $2,580) are both premium-tier linear fireplaces, but they solve different problems. Amantii is the only one of the two rated for indoor-or-covered-outdoor use on the same unit — useful if the fireplace might move outdoors later. SimpliFire’s Scion is the only one with a real 240V heat-boost option, stepping up to 2,800W/~800 sq ft for rooms that genuinely exceed the category-standard 400 sq ft. Neither brand beats the other on price-to-heat; they’re built for different installs.

Amantii and SimpliFire both already have their own dedicated roundups on this site and get mentioned in each other’s “Vs.” bottom lines — Amantii as the brand without SimpliFire’s heat-boost option, SimpliFire as the brand without Amantii’s outdoor flexibility — but nobody has put them side by side directly. Both sit in a similar premium price tier above Touchstone and R.W.Flame, which makes this a more useful head-to-head than either brand’s comparison against Dimplex’s realism benchmark or Napoleon’s lower-cost smart-control line.

Head to head at a glance

AmantiiSimpliFire
CompanyPrivately held, Canadian-owned (Vancouver, BC) — also makes sister gas brand Sierra FlameHearth & Home Technologies — US multi-brand portfolio (also Majestic, Monessen)
Flagship premium linearSymmetry Bespoke 60" (SYM-60-BESPOKE)Scion 55" (SF-SC55-BK)
Price$3,399, list $4,593.24Starting at $2,099 (manufacturer, unit only) to $2,580 at authorized dealers
Standard heat1,500W/5,000 BTU, ~400 sq ft1,400W/5,000 BTU, ~400 sq ft
240V heat-boost optionNone on any model2,800W/~800 sq ft, hardwired only
Outdoor ratingIndoor or covered-outdoor, same unitIndoor only
Smart controlApp (Tuya-based)App, Alexa, Google Home
Best forAn install that might move outdoors later, or wants a full-frame clean-face lookA room genuinely larger than 400 sq ft

A Canadian two-brand operation vs. a US multi-brand portfolio

This is the structural difference most shoppers never check. Amantii is a privately held, Canadian-owned manufacturer based in Vancouver, British Columbia, per Stylish Fireplaces’ retailer profile of the brand. It sells one close sister brand, the gas-focused Sierra Flame — several retailers describe the two brands together, with product listings citing nearly four decades of combined experience in the fireplace and heating industry. SimpliFire, by contrast, is one of several electric-fireplace brands under Hearth & Home Technologies, a larger US manufacturer that also owns Majestic and Monessen, per Hearth & Home Technologies’ own brand materials — the same multi-brand-under-one-roof structure this site has already documented in its Napoleon vs SimpliFire comparison. Neither structure is inherently better, but a SimpliFire warranty claim or parts request runs through a larger, more diversified US company, while an Amantii claim runs through a smaller Canadian manufacturer with one sister brand rather than several.

Outdoor flexibility: this is where Amantii wins

Every Amantii model reviewed on this site runs the identical 1,500W/5,000 BTU heater regardless of price — but the Symmetry Bespoke 60” and Tru View Bespoke 45” 3-Sided are both rated for indoor or covered-outdoor installation on the same unit, per Flame Authority’s and Electric Fireplaces Depot’s own spec listings. That’s a genuine advantage over most of this site’s brand lineup, which typically sells separate indoor-only and outdoor-only product lines (Touchstone and Real Flame both do this). SimpliFire’s Scion, by comparison, is an indoor built-in with no outdoor rating in its own spec sheet — a buyer planning a covered patio or three-season room would need a different SimpliFire model or should pick Amantii instead.

Amantii Symmetry Bespoke 60" Electric Fireplace

Best for indoor-or-outdoor flexibility · Full-frame clean face · $3,399 (list $4,593.24)
  • Rated for indoor or covered-outdoor installation on the same unit, per Flame Authority's own spec listing — no separate outdoor SKU needed.
  • 1,500W/5,000 BTU heater (750W on low), the same output as nearly every plug-in model on this site.
  • No 240V heat-boost option on any of Amantii's wall, linear, or 3-sided models. Heat output stays flat while the price buys design and outdoor flexibility. Amantii's only 240V-capable unit is its freestanding Lynwood cast-iron stove (up to 20,000 BTU hardwired), covered in our best electric fireplace stove guide.
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Heat: this is where SimpliFire actually wins

SimpliFire’s Scion starts at the same category-standard 1,400W/~400 sq ft on regular 120V power, but per SimpliFire’s own spec sheet it can be hardwired to a dedicated 240V circuit for 2,800W and roughly 800 sq ft of real coverage — double the standard ceiling, the same genuine exception this site’s electric fireplace 220V/240V guide already covers for the Scion against Dimplex and Napoleon. Amantii has no equivalent upgrade path on any model at any price. If the room is genuinely larger than a standard living room — an open-concept great room, a finished basement — SimpliFire’s Scion is doing something no Amantii model here structurally can, though it still needs an electrician for the 240V hookup.

SimpliFire Scion 55" Built-In Linear Electric Fireplace

Best for genuinely more heat · Dual-voltage 1,400W-2,800W · From $2,099 (manufacturer), up to $2,580 at dealers
  • Hardwired to a 240V circuit, steps up to 2,800W/~800 sq ft — the only model in this comparison that beats the standard 400 sq ft ceiling, per SimpliFire's own spec sheet.
  • App, Amazon Alexa, and Google Home control, plus multiple flame and ember-bed color options.
  • No indoor/outdoor flexibility — this is an indoor built-in only, with no covered-outdoor rating in SimpliFire's own spec sheet.
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Price: a real gap, with SimpliFire harder to pin down

Amantii is priced plainly: the Symmetry Bespoke 60” runs $3,399 at Flame Authority, down from a $4,593.24 list price. SimpliFire’s pricing is genuinely harder to find. SimpliFire’s own manufacturer site lists the Scion starting at $2,099 for the unit alone, with pricing exclusions noted, while at least one authorized SimpliFire dealer we checked declined to display any price at all online, directing buyers to call or request a quote — a manufacturer MAP (minimum advertised price) restriction pattern this site hasn’t flagged on any other brand so far. Other dealer listings put the Scion as high as $2,580. Either way, Amantii’s Bespoke line costs roughly $800-$1,300 more than SimpliFire’s Scion at the sizes compared here, buying outdoor flexibility and a full-frame glass face rather than more heat.

Warranty: Amantii’s Bespoke tier pulls ahead here too

Amantii’s Bespoke line — the Symmetry Bespoke compared here — carries a 5-year limited warranty, per Amantii’s own warranty document, the longest confirmed term on this site alongside Dimplex’s Ignite series. SimpliFire’s Scion carries a 2-year warranty across manufacturer and retailer listings — a real 3-year gap on top of the price difference. See this site’s electric fireplace warranty comparison for how every brand’s terms stack up, including the catch that Amantii’s own non-Bespoke Symmetry XT line drops to the same 2-year term as SimpliFire.

Install options

SimpliFire’s lineup leans toward complete mantel packages — its Boyd 78” Modern Farmhouse package already appears in this site’s best farmhouse electric fireplace guide — see the best SimpliFire electric fireplace roundup for the full lineup including the bare Allusion Slim insert. Amantii’s Bespoke tier is sold as a standalone full-frame unit rather than a complete furniture package, but it’s the one brand in this comparison that doesn’t force a choice between an indoor and an outdoor fireplace if the room’s use might change later. See the best Amantii electric fireplace guide for the Tru View Bespoke 3-sided option and the budget FS-26-922 freestanding stove.

The bottom line

Choose Amantii’s Symmetry Bespoke if there’s any real chance the fireplace ends up in a covered outdoor space, or if a clean full-frame glass face matters more than a complete mantel package — it’s the only brand here built for both environments on the same unit. Choose SimpliFire’s Scion if the room genuinely exceeds the category-standard 400 sq ft and the budget includes an electrician for a 240V hookup — it’s the one model in this matchup that can actually deliver more heat, not just a bigger price tag. Weighing either against the realism benchmark or a lower-cost smart-control option? See this site’s Dimplex vs Touchstone and Napoleon vs SimpliFire comparisons, or the full field in the best electric fireplace rankings.