No winner exists on price per inch as of September 18, 2026. Our comparison query returned zero in-stock LG C4 listings, and its $639.99 "LG C3" floor is Corsair DDR5 RAM, not a television. The one C4 price in evidence is ₹1,69,990 for the 65-inch in India (Smartprix, June 26, 2026). The C4 carries 4× HDMI 2.1 at 4K/144 and a 144Hz maximum refresh rate versus 120Hz on the C3 — decide on specs first, then verify $/inch on purchase day.
Top Picks by $/inch
View all →| # | Product | Screen Size | $/inch | Price | Retailer |
|---|---|---|---|---|---|
| 1 | Samsung - 55" Class S84F OLED 4K UHD SmartVision AI Smart Tizen TV (2026) | 55" | $14.55/inch | $799.99 | Best Buy |
| 2 | Samsung - 65" Class S84F OLED 4K UHD Vision AI Smart Tizen TV (2025) | 65" | $14.62/inch | $949.99 | Best Buy |
| 3 | Samsung QN65S90F 65 inch Class OLED 4K S90F Vision AI Smart TV (2025) | 65" | $15.77/inch | $1,024.80 | Amazon |
| 4 | LG - 48" Class B6 Series OLED AI 4K Smart webOS TV (2026) | 48" | $16.67/inch | $799.99 | Best Buy |
| 5 | LG - 55" Class B5 Series OLED AI 4K UHD Smart webOS TV (2025) | 55" | $18.18/inch | $999.99 | Best Buy |
Samsung - 55" Class S84F OLED 4K UHD SmartVision AI Smart Tizen TV (2026)
55" · Best Buy
$14.55/inch
$799.99
Samsung - 65" Class S84F OLED 4K UHD Vision AI Smart Tizen TV (2025)
65" · Best Buy
$14.62/inch
$949.99
Samsung QN65S90F 65 inch Class OLED 4K S90F Vision AI Smart TV (2025)
65" · Amazon
$15.77/inch
$1,024.80
LG - 48" Class B6 Series OLED AI 4K Smart webOS TV (2026)
48" · Best Buy
$16.67/inch
$799.99
LG - 55" Class B5 Series OLED AI 4K UHD Smart webOS TV (2025)
55" · Best Buy
$18.18/inch
$999.99
The Short Answer
Neither model can be crowned on tracked dollars per inch today. The live comparison query for "LG C3" produced a $639.99 floor that belongs to a Corsair Vengeance 32GB DDR5-6200 kit ($19.999688/GB) — a keyword-match failure, not television data — alongside Kingston DDR5 kits spanning $649.99 to $968.54 and an LG Titan L100 55-inch outdoor QNED at $2,399.99 ($43.636182/unit). The C4 side of the query returned zero in-stock listings as of September 18, 2026. No C3 or C4 appears among the five cheapest in-stock listings in our 4K OLED tracker, which currently floors at $14.5453/inch.
Price Per Inch Breakdown
LG C3 — no price in evidence. The one C3 source in our research is a long-term review transcript with no price for the TV itself. That disqualifies the C3 from any $/inch ranking.
LG C4 — priced, but in rupees. Smartprix (drawing on Flipkart, price last changed June 26, 2026) lists the India variant ladder: 48-inch ₹96,699, 42-inch ₹99,990, 55-inch ₹1,09,990, 65-inch ₹1,69,990. The 65-inch LG Evo C4 (OLED65C4PUA) works out to ₹1,69,990 ÷ 65 ≈ ₹2,615/inch. No USD figure exists in our evidence, so a US $/inch cannot be derived without an FX assumption we won't invent.
Same Size, Same Tier?
The tier comparison is fair — the C3 and C4 are consecutive generations of LG's C-series OLED line — but the pricing data is not. The 65-inch is the anchor size where a C4 price exists (₹1,69,990), yet no C3 size is priced anywhere in our evidence, so a 65-inch head-to-head in dollars cannot be assembled. A related cross-brand question is covered in Samsung vs LG 48-inch OLED pricing.
What the Extra Cost Buys You
Objective, sourced specs only. Our evidence contains no verified brightness, processor, or panel-tier figures for either model, so those rows stay empty rather than guessed:
- HDMI 2.1 ports: the C4 offers 4× HDMI 2.1; a 2026 Sony A95L comparison in our evidence shows the C4 at 4× HDMI 2.1 with 4K/144 against the A95L's 2× at 4K/120.
- Refresh support: the C4 runs a 144Hz maximum refresh rate compared to the 120Hz refresh rate of the C3.
For console-and-PC households, that port count is the one upgrade argument our data supports — see our 4K OLED picks for gaming.
When Each Makes Sense
- Keep or buy the C3 if your current HDMI 2.1 ports cover your devices and price is the constraint: no C3 price exists in our evidence, so measure any deal against live listings on the day you buy.
- Buy the C4 if 4× HDMI 2.1 at 4K/144 is worth the premium for a multi-source setup — but verify live $/inch first, since our tracker shows zero C4 stock and India's ₹2,615/inch cannot be converted without an FX assumption.
Before upgrading, pull the asking price for the C3 and C4 on the same day and divide each by its diagonal. Compare the two results to each other: if the C4 quote lands well above a comparable C3 quote, the HDMI 2.1 count is what you are paying for — nothing else in our data says otherwise.
FAQ
Is the LG C4 worth upgrading to from the C3?
Only if you need the C4's 4× HDMI 2.1 ports running 4K/144 and its 144Hz refresh rate instead of the C3's 120Hz — that port count is the one measurable upgrade our data confirms. On price, no US comparison is possible today: the C3 has no priced listing and the C4's only anchor is ₹1,69,990 for the 65-inch in India (≈₹2,615/inch).
How much is the LG C4 per inch?
The only tracked C4 figure is ₹1,69,990 ÷ 65 ≈ ₹2,615/inch for the 65-inch India variant (Smartprix, June 26, 2026). No USD price exists in our evidence, so a US $/inch cannot be computed without an FX assumption.
What is the cheapest LG OLED per inch right now?
The live query's lone LG television match is the Titan L100 55-inch outdoor QNED at $2,399.99 ($43.636182/unit). Neither the C3 nor the C4 appears among the five cheapest in-stock listings in our tracker as of September 18, 2026.
What is the HDMI 2.1 difference between the C3 and C4?
The C4 carries 4× HDMI 2.1 ports running 4K/144 and a 144Hz maximum refresh rate versus the C3's 120Hz. That difference matters for households running multiple 4K/120-capable consoles and PCs simultaneously.
Verdict
No $/inch winner as of September 18, 2026. The C3 has no priced listing in our evidence; the C4's single anchor is ₹1,69,990 ÷ 65 ≈ ₹2,615/inch in India (Smartprix, June 26, 2026); and the live query's lone LG television match is the Titan L100 QNED outdoor unit at $2,399.99. Treat this as a spec decision — 4× HDMI 2.1 at 4K/144 with a 144Hz max refresh rate versus the C3's 120Hz — and re-check live OLED listings → before you buy.