Compare 3 Shops
| Product | Pack | Price | Per Seed | |
|---|---|---|---|---|
C4 Auto
SeedsmanUSA only
Best per seed
|
10 seeds | €69.01 $80.00 at the shop, converted at 1.1592 | €6.90/seed | View Deal |
C4 Auto
Herbies Head Shop
|
5 seeds | €38.82 $45.00 at the shop, converted at 1.1592 | €7.76/seed +€0.86 vs cheapest | View Deal |
C4 Automatic Seeds
Sensi Seeds
|
10 seeds | €81.50 | €8.15/seed +€1.25 vs cheapest | View Deal |
|
C4 Auto
Herbies Head Shop
Cheapest pack
|
3 seeds | €25.88 $30.00 at the shop, converted at 1.1592 | €8.63/seed +€1.73 vs cheapest | View Deal |
C4 Automatic Seeds
Sensi Seeds
|
5 seeds | €44.00 | €8.80/seed +€1.90 vs cheapest | View Deal |
C4 Automatic Seeds
Sensi Seeds
|
3 seeds | €29.50 | €9.83/seed +€2.93 vs cheapest | View Deal |
Prices from shops that bill in another currency were converted to euros at the European Central Bank reference rate of 2026-09-11. You pay the shop's own amount, which is shown next to it.
Compare Auto C4 with another strain
About Auto C4
Auto C4 is an autoflower indica strain from Sensi Seeds. Grown in a temperate climate it comes out compact, with a heavy yield. THC is listed at 20.0 to 20.0 percent. 6 priced offers at 3 shops, from €25.88 or €6.90 per seed. Sold in packs of 3, 5, 10 seeds. The most expensive listing is €81.50.
C4 Automatic is a 60% indica-dominant hybrid developed for the Sensi Seeds Breeding Grounds project together with Serge Cannabis. The original C4 strain is a blend of Triangle Kush and Strawnana, and this version crosses that winning formula with Sensi Seeds’ Ruderalis Indica, the very first autoflowering strain created by Nevil Schoenmakers in the 1980s.
Same kind, what it costs elsewhere
Other indica autoflower seeds in the index, cheapest per seed first.
| Strain | Breeder | Pack from | Per seed | vs this page | |
|---|---|---|---|---|---|
| Auto Caramel | Zamnesia Seeds | €2.85 | €1.94 | €4.96 cheaper | Offers |
| Auto Critical | Zamnesia Seeds | €2.85 | €1.94 | €4.96 cheaper | Offers |
| Auto Lemon Wonder | Zamnesia Seeds | €2.85 | €1.94 | €4.96 cheaper | Offers |
| Auto Northern Lights | Sensi Seeds | €2.85 | €1.94 | €4.96 cheaper | Offers |
| Auto White Monster | Zamnesia Seeds | €2.85 | €1.94 | €4.96 cheaper | Offers |
| Auto Blueberry | Dutch Passion | €3.11 | €2.07 | €4.83 cheaper | Offers |
Per-seed prices come from the cheapest priced pack at any shop that lists the strain. Packs differ in size, which is exactly why the comparison is per seed.
Questions about Auto C4
How much does one Auto C4 seed cost?
€6.90 per seed, in the 10 seed pack at Seedsman. The 3 seed pack works out at €8.63 per seed, so the larger pack saves €1.73 on every seed.
How many seeds are in a pack of Auto C4?
Three sizes are listed: 3, 5 and 10 seeds, at €25.88, €38.82 and €69.01.
Is Auto C4 feminized, autoflowering or regular?
Auto C4 is sold as autoflower seed. It is described as indica. The listed climate is temperate.
Where can I buy Auto C4 seeds?
Six offers in this index, at Herbies Head Shop, Seedsman and Sensi Seeds. Prices are read from the shop's own feed and updated daily.