Lost Mary OS5000 Review: 5,000 Puffs, 13 mL and the Bigger Small Cell
The original Lost Mary by the numbers, and why 77 reviews rate it lower than its siblings
6 min read
Key Takeaways
- Lost Mary rates the OS5000 at 5,000 puffs from 13 mL of e-liquid, about 385 rated puffs per mL, on a 650mAh cell with USB-C charging.
- It is the oldest body in the Lost Mary range we carry and the most reviewed of the 5,000-puff pair: 77 reviews on 8 sites, 72 of them rated, averaging 4.43 of 5.
- Flavor is the theme in 44 of the 77 reviews, and it is also where the one-star lines land; run time and build each come up in about a dozen.
- There is no readout: three reviews say so outright, and one calls it the only con.
- VapeDeals lists 35 flavors; 8 names carry Ice and 5 carry Mint, so 13 of the 35 bring a cooling note and 22 do not.
What the Lost Mary OS5000 Is
The Lost Mary OS5000 is the original 5,000-puff Lost Mary: a pre-filled, rechargeable disposable with 13 mL of e-liquid, a 650mAh cell, a mesh coil and nothing to set. It is draw-activated, with no button and no screen in the facts we hold. On VapeDeals it sits on the 5,000-puff shelf of the disposables range, beside the MO5000, the other small body from Lost Mary.
| Spec | Lost Mary OS5000 |
|---|---|
| Rated Puffs | 5,000 |
| E-Liquid | 13 mL |
| Battery | 650mAh |
| Coil | Mesh |
| Charging | USB-C |
| Flavors Listed | 35 |
Battery and Charging
The cell is 650mAh, larger than the 500mAh in the MO5000 that shares its 13 mL and 5,000-puff rating, and it charges over USB-C. Battery is the theme in 9 of the 77 reviews and charging in 4, and the buyers who raise it are mostly reporting that it holds. A buyer on elementvape.com writes "Great flavor and has a solid battery life. Never got burnt until it was out of juice."
What the battery does not do is tell you where it stands. A buyer on ejuicedb.com rates it 3 of 5 for exactly that: "needs a fluid and battery life indicator!...just saying!" On a 13 mL device that is a fair ask. It is the single most repeated complaint about the body itself. Lost Mary does not publish a charge time in the facts we hold, and no quoted buyer gives one.
E-Liquid and Flavor
13 mL rated at 5,000 puffs is about 385 rated puffs per mL by Lost Mary's arithmetic, with short draws assumed. The coil is a single mesh. Flavor is where the reviews pile up: 44 of the 77 are about it, and the split between praise and complaint is wider here than on the newer Lost Mary bodies.
VapeDeals lists 35 flavors. By name, 8 carry Ice (Acai Berry Storm Ice, Banana Raspberry Ice, Berry Crush Ice, Blue Razz Ice, Green Grape Ice, Peach Ice, Pineapple Duo Ice, Sakura Berry Peach Ice) and 5 carry Mint (Forest Mint, Lemon Mint, Light Snoow Peppermint, Rose Sour Plum Mint, Strawberry Guava Mint), so 13 of the 35 bring a cooling note. The other 22 are fruit, dessert and drink names: Banana Split, Black Lemonade, Cherry Cola, Mexican Mango, Strawberry Mango, Watermelon Kiwi Lemonade and the rest.
Taste words stay with the buyers. The one flavor a buyer takes apart by name is the rose one: a buyer on vapordna.com rates it 3 of 5 and writes "The rose flavor is a bit too strong. If it was just plum I think it would be better." That points at Rose Sour Plum Mint, and it is a note on one name, not on the list.
Draw and the Missing Readout
The OS5000 is draw-activated and has no button, which is the part buyers who like it like most. A buyer on vapesourcing.com puts it as "I love the simplicity of it. no buttons, just draw and vape." The flip side is the readout it does not have. A buyer on vapordna.com, rating it 4 of 5, gives both halves in one line: "good flavor good draw and lasts surprisingly long for a small vape. The only con is it doesn't track anything."
What Buyers Say
Seventy-seven reviews, 72 of them rated, average 4.43 of 5. That is lower than the MO5000, MT15000 and MO20000 Pro sheets we hold (4.77, 4.66 and 4.72). The praise is the same as on every Lost Mary: flavor, run time and size. The elementvape.com and vapesourcing.com buyers quoted above are typical of the five-star lines.
The complaints are what make this average lower, and they come in two kinds. The first is run time: a buyer on ejuicedb.com rates it 2 of 5 with "All ok, but boring. Doesn't last enough." The second is flavor that was weak or missing, which is where the one-star lines cluster, most of them on vapordna.com in late 2025. One of those blames a unit that arrived expired. We read that cluster as a stock-age problem showing up in a product review. It is in the record either way, and you should know it is there.
Our reading: the OS5000 is the body Lost Mary built its name on. The buyers who rate it high rate it for what it is, a small, simple device with a bigger cell than its twin. The buyers who rate it low mostly wanted a readout or a longer run, and the brand now sells both in the bigger bodies.
Where It Sits
Against the MO5000 the numbers are close. Both are rated 5,000 puffs from 13 mL, the OS5000 carries 650mAh to the MO5000's 500mAh, and both have a single mesh coil and no readout. Against the MT15000 Turbo the gap is the point: 15,000 rated puffs from 16 mL on a 600mAh cell, with a dual mesh coil and, by buyers' account, a screen. If you want the original Lost Mary draw in the smallest body with the bigger cell, this is it. If the missing readout rules it out for you, the MT15000 is the next step up.
Pick It If, Skip It If
Pick it if:
- You want the original 5,000-puff Lost Mary with the larger of the two small cells, 650mAh.
- You want no button and no settings: draw and go, which is what the five-star lines praise.
- You want a 35-name list with 22 names that carry no cooling note.
Skip it if:
- You want a readout of battery and liquid; three reviews flag that it has none.
- You want the longest run per device from the brand; the MT15000 Turbo is rated three times higher.
The Verdict
The OS5000 is 13 mL, 5,000 rated puffs and a 650mAh USB-C cell in the body that made Lost Mary a shelf name, with 35 flavors behind it. Seventy-two rated reviews average 4.43 of 5, the lowest of the Lost Mary sheets we hold. The reasons are specific: no readout, a run that ends without warning, and a cluster of weak-flavor one-star lines in late 2025. If you want simple and small with the bigger cell, the numbers and most buyers back it. If you want to know where the liquid stands, go up the lineup.
FAQ
How many puffs is the Lost Mary OS5000 rated for?
Lost Mary rates it at 5,000 puffs from 13 mL of e-liquid.
What battery does the OS5000 have?
A 650mAh cell that charges over USB-C.
Does the OS5000 have a screen?
No; there is no readout in the facts we hold, and three reviews say the same.
How many flavors does the OS5000 come in?
VapeDeals lists 35 flavors, 13 of them with an Ice or Mint note in the name.
What is the difference between the OS5000 and the MO5000?
Both are rated 5,000 puffs from 13 mL; the OS5000 carries a 650mAh cell and the MO5000 a 500mAh cell.
WARNING: This product contains nicotine. Nicotine is an addictive chemical.
