Acebeam E70 Ti vs Olight ArkTac size comparison
The Olight ArkTac is 7.2 mm (0.28 in) longer than the Acebeam E70 Ti, and 1 mm narrower at its widest point. It is 60 g lighter (with battery).
The Olight ArkTac is 7.2 mm (0.28 in) longer than the Acebeam E70 Ti, and 1 mm narrower at its widest point. It is 60 g lighter (with battery).
Dimensions
| Acebeam E70 Ti Check price ↗ | Olight ArkTac Check price ↗ | |
| Length | 128.3 mm (5.05 in) | 135.5 mm (5.33 in)+7.2 mm |
| Head / width | 30 mm (1.18 in) | 29 mm (1.14 in)−1 mm |
| Body | 27 mm (1.06 in) | — |
| Thickness | — | 17 mm (0.67 in) |
| Weight | 196 g with battery | 136 g with battery−60 g |
| Battery | 21700 | Built-in |
| Max output | 3,750 lm | 1,700 lm |
| Throw | — | 205 m |
| Type | EDC | EDC |
| Price | $229.00 at nealsgadgets.com, as of Nov 4, 2026 | $119.99 at olight.com, as of Nov 4, 2026 |
| Source | nealsgadgets.com sourced Titanium version | olight.com sourced |
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E70 Ti vs ArkTac: how they differ
Size and weight
The Acebeam E70 Ti is the shorter light: 128.3 mm (5.05 in) against 135.5 mm (5.33 in), a difference of 7.2 mm (5%). At its widest point the Olight ArkTac is 1 mm slimmer (29 vs 30 mm). The Olight ArkTac is 60 g lighter (136 g vs 196 g, with battery).
Brightness and throw
The Acebeam E70 Ti is rated brighter: 3,750 lm maximum vs 1,700 lm for the Olight ArkTac, 121% more.
Battery
The Acebeam E70 Ti runs on a removable 21700 battery; the Olight ArkTac runs on a built-in rechargeable battery. Only the Acebeam E70 Ti lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Acebeam E70 Ti was $229.00 at nealsgadgets.com and the Olight ArkTac $119.99 at olight.com, so the Olight ArkTac cost $109.01 less. Prices change often, so check the current price before you buy.
Type
Both are EDC lights in our catalog.
Which should you buy?
Choose the Acebeam E70 Ti if you want a shorter light (7.2 mm shorter), more output (3,750 lm vs 1,700 lm) and a removable cell you can swap. Choose the Olight ArkTac if you want less weight (60 g lighter) and a built-in battery with no separate cell to buy. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Acebeam E70 Ti Check price ↗ Olight ArkTac
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
E70 Ti vs ArkTac FAQ
Which is smaller, the Acebeam E70 Ti or the Olight ArkTac?
The Acebeam E70 Ti is the shorter light: 128.3 mm (5.05 in) against 135.5 mm (5.33 in), a difference of 7.2 mm (5%). At its widest point the Olight ArkTac is 1 mm slimmer (29 vs 30 mm). The Olight ArkTac is 60 g lighter (136 g vs 196 g, with battery).
Which is brighter, the Acebeam E70 Ti or the Olight ArkTac?
The Acebeam E70 Ti is rated brighter: 3,750 lm maximum vs 1,700 lm for the Olight ArkTac, 121% more.
Which is cheaper, the Acebeam E70 Ti or the Olight ArkTac?
When we checked on Nov 4, 2026, the Acebeam E70 Ti was $229.00 at nealsgadgets.com and the Olight ArkTac $119.99 at olight.com, so the Olight ArkTac cost $109.01 less. Prices change often, so check the current price before you buy.
Do the Acebeam E70 Ti and Olight ArkTac use the same battery?
The Acebeam E70 Ti runs on a removable 21700 battery; the Olight ArkTac runs on a built-in rechargeable battery. Only the Acebeam E70 Ti lets you swap in a charged spare.
Compare Acebeam E70 Ti with similar lights
Compare Olight ArkTac with similar lights
More
Sources
- Acebeam E70 Ti: specs from manufacturer published specs as listed by nealsgadgets.com. Price $229.00 from nealsgadgets.com, checked Nov 4, 2026; prices change often.
- Olight ArkTac: specs from Olight product page (manufacturer). Price $119.99 from olight.com, checked Nov 4, 2026; prices change often.
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