Review summary
7.8/10Vape Price Compare editorial evidence score
Quick verdict
The NASTY BAR DR20Ki, commonly listed in South Africa as the NASTY 20K, earns a 7.8/10 editorial evidence score. Its strongest documented features are three selectable power modes, a double-mesh coil, adjustable airflow, battery and liquid indicators, USB-C charging and a 17mL prefilled capacity. The exact Cushman Mango Banana listing also has useful local price-comparison coverage and a 4.4/5 marketplace rating from 18 customers. This is our evidence-based assessment, not a hands-on test or a republished external review score.
7.8/10 — our editorial evidence score for the NASTY BAR DR20Ki / 20K. The weighted calculation evaluates documented features, specification consistency, South African price context, range availability and the quality of independent or customer evidence. Manufacturer claims are not treated as independently proven performance. Vape Price Compare has not hands-on tested this device. See the full calculation or read our review methodology.
Pros
- The official specification documents three operating modes, a double-mesh coil, adjustable airflow and an animated status screen.
- Battery and liquid indicators provide more information than a basic warning light.
- The exact Cushman Mango Banana variant has two current retailer offers in the Vape Price Compare catalogue.
- An exact Takealot listing displayed a 4.4/5 customer rating from 18 ratings when checked.
Evidence limits
- The ECO, NORMAL and TURBO puff capacities are manufacturer mode ratings and were not independently measured for this review.
- Official NASTY material states a 650mAh battery, while some South African retailer listings publish 700mAh or 800mAh; this review uses the official figure.
- The marketplace rating is a useful customer signal, but its written review detail was not available to assess and it is not our editorial score.
Compare current NASTY 20K prices
Current comparison picks for exact NASTY BAR DR20Ki / 20K listings from South African retailers.
Price data checked 3 November 2026. Prices and stock can change; confirm the retailer's final price.
How we calculated the 7.8/10 score
This is a Vape Price Compare editorial evidence score, not a customer-rating average or a claim that we physically tested the product. Each category is scored out of 10 and multiplied by its published weight. The weighted results total 7.8 out of 10.
| Category | Weight | Category score | Weighted result | Evidence basis |
|---|---|---|---|---|
| Documented features and usability | 30% | 9.0/10 | 2.70 | Three modes, double-mesh coil, airflow control, animated screen, battery and liquid indicators, USB-C charging and mouth-tip covers are documented for the model. |
| Specification consistency | 20% | 7.0/10 | 1.40 | Official catalogue and wholesale material align on the principal features, capacity and dimensions. Battery figures vary across retailer pages, so the official 650mAh figure is used. |
| South African price context | 20% | 8.0/10 | 1.60 | The exact Cushman Mango Banana product has two live retailer offers on Vape Price Compare, with a R260–R320 comparison range when checked. |
| Range and local availability | 15% | 7.0/10 | 1.05 | The original catalogue documents 15 flavours, while current South African retail assortments include additional flavours such as Cushman Mango Banana. Exact-stock availability varies. |
| Independent and customer evidence | 15% | 7.0/10 | 1.05 | An exact Takealot listing displayed 4.4/5 from 18 customer ratings. This is a meaningful product-specific signal, but no controlled hands-on test was located and written rating detail was unavailable. |
| Total | 100% | — | 7.80/10 | Rounded display score: 7.8/10. |
Evidence checked against the official NASTY South Africa DR20Ki page, the official DR20Ki catalogue, exact Cushman Mango Banana listings from CloudJuice, The Vape Station and Takealot, plus current Vape Price Compare catalogue data. Prices, ratings and stock can change after publication.
What is the NASTY 20K?
The NASTY 20K is the South African retail name commonly used for the NASTY BAR DR20Ki, a draw-activated, rechargeable disposable vape sold locally in 50mg nicotine strength. NASTY’s official material describes a 17mL device with ECO, NORMAL and TURBO modes, allowing the user to choose between the manufacturer’s different capacity and output settings.
The Cushman Mango Banana version reviewed here is one current flavour variant. The score applies to the DR20Ki device platform; flavour descriptions and prices are identified separately where relevant.
NASTY BAR DR20Ki / 20K specifications
| Feature | Published detail | Evidence |
|---|---|---|
| Model | NASTY BAR DR20Ki, commonly listed as NASTY 20K | Official NASTY and South African retailer listings |
| Advertised mode capacities | ECO: up to 20,000; NORMAL: up to 15,000; TURBO: up to 10,000 puffs | Manufacturer ratings; not independently measured here |
| Nicotine | 50mg for the South African version reviewed | Exact local retailer listings |
| E-liquid | 17mL | Official NASTY specification |
| Battery | 650mAh rechargeable | Official NASTY South Africa specification |
| Charging | USB Type-C | Official catalogue and retailer listings |
| Coil | 0.60Ω double-mesh coil | Official NASTY South Africa specification |
| Modes | ECO, NORMAL and TURBO | Official NASTY specification and catalogue |
| Display | Animated motion screen with battery and liquid indicators | Official NASTY specification |
| Airflow | Independent adjustable airflow | Official NASTY specification |
| Dimensions | 102 × 48.6 × 27.5mm | Official DR20Ki catalogue |
| Weight | Approximately 96g | Official NASTY material |
| Refillable | No; sold as a sealed disposable device | Product category and local retailer listings |
What do ECO, NORMAL and TURBO modes change?
| Mode | Manufacturer capacity rating | Published positioning |
|---|---|---|
| ECO | Up to 20,000 puffs | Longest advertised capacity setting |
| NORMAL | Up to 15,000 puffs | Middle setting |
| TURBO | Up to 10,000 puffs | Higher-output setting with the lowest advertised capacity |
These figures explain why the same device may be described as 10K, 15K or 20K in manufacturer material. They are mode-specific “up to” ratings, not Vape Price Compare endurance measurements. The defensible takeaway is that output choice and advertised capacity are linked; this review does not convert the figures into days of use.
What the published evidence supports
The strongest source is NASTY’s South African wholesale specification, supported by the official catalogue. Together they document the 17mL capacity, three modes, 0.60Ω double-mesh coil, airflow control, screen, liquid and battery indicators, USB-C charging, dimensions and approximate weight.
Some retailer pages state 700mAh or 800mAh battery capacities. We use 650mAh because it is the value published by the brand’s South African wholesale site. The difference is recorded as a source-consistency limitation, not presented as evidence that the device performs poorly.
Cushman Mango Banana flavour and current prices
Cushman Mango Banana is presented by South African retailers as a mango-and-banana flavour in the current DR20Ki range. This review does not assign a taste score because Vape Price Compare has not sampled it. The exact product page is more useful for a buying decision because it compares current retailer prices for the same flavour and nicotine strength.
When researched, the NASTY 20K Cushman Mango Banana price-comparison page displayed two retailers, from R260 to R320. The live comparison panel on this review updates from current catalogue data, so it may differ from the publication-day range.
What customer-rating evidence is available?
The exact Cushman Mango Banana listing on Takealot displayed a 4.4/5 customer rating from 18 ratings when checked. That is a relevant exact-product signal and is included in the independent-evidence component of our score. It is not converted directly into 8.8/10, because marketplace ratings and an editorial evidence review measure different things.
The written review detail behind that aggregate was not available during research, so we cannot responsibly attribute specific praise or complaints to those customers. The 4.4/5 figure should therefore be read alongside the official specification and current price evidence—not as proof of every manufacturer performance claim.
Flavours and the current South African assortment
The original official DR20Ki catalogue lists 15 flavours: Peach Ice, Double Watermelon, Citronnade Twist, Strawberry Melon, Sweet Tobacco, Grape Ice, Pineapple Ice, Tangy Apple Splash, Malibu, Sour Apple Ice, Arctic Mint, Strawberry Ice, Berry Grape, Blue Razz Ice and Cherry Peach Raspberry.
Current South African stores carry a broader or updated assortment, including Cushman Mango Banana. This indicates that the local flavour range has evolved since the catalogue was published. Stock should be confirmed on the exact product page rather than inferred from the original list.
Display, airflow and charging
The screen is documented to show battery and liquid status, helping an adult user monitor the two consumable limits. Airflow is adjustable independently, and the operating-mode control changes the device’s documented output/capacity setting. These controls make the DR20Ki more configurable than a fixed-output disposable.
The 650mAh battery recharges through USB-C so the sealed liquid supply can be used over multiple charge cycles. Charging does not make the product refillable. Follow the supplied instructions, keep the port dry and stop using a damaged, leaking or overheating device.
Who is the NASTY 20K for?
Based on the documented specification, the DR20Ki is most relevant to adults who already choose 50mg nicotine-salt disposables and want selectable modes, adjustable airflow and on-device battery and liquid information. It is not a suitable match for someone seeking a lower nicotine strength, replaceable coils or a refillable pod system.
Where the DR20Ki fits in the NASTY range
| Model | Published capacity | Documented position |
|---|---|---|
| NASTY BAR D9Ki | Up to 9,000 puffs | Smaller rechargeable model |
| NASTY JET 15Ki | Up to 15,000 puffs | Compact big-puff model with display and airflow control |
| NASTY BAR DR20Ki / 20K | Up to 20,000 in ECO mode | Three-mode model with a larger 17mL published capacity |
| NASTY SURGE+ 55K | Up to 55,000 puffs | Higher-capacity model with selectable power modes |
All capacities above are manufacturer “up to” figures, not directly comparable independent endurance tests. Compare the documented feature set, nicotine strength and live price for the exact product that interests you.
Charging and disposal
When the sealed liquid supply or coil reaches the end of its usable life, the complete device becomes waste containing a lithium battery and may retain nicotine liquid. Use a collection service that confirms it accepts intact vaping devices; do not place it in household rubbish or ordinary recycling. Read general e-cigarette disposal guidance.