The Contour Next One is a Bluetooth-enabled blood glucose meter by Ascensia Diabetes Care for adults managing diabetes at home. It features SmartLIGHT color-coded feedback, Second-Chance Sampling to reduce strip waste, and automatic pairing with the free Contour Diabetes app for tracking glucose trends.
The meter delivers accuracy within plus or minus 8.4% of lab values and exceeds ISO 15197:2013 standards. An independent evaluation recorded a 7.9% MARD, placing it second among 14 clinically evaluated monitors. The app syncs readings via Bluetooth and identifies glucose patterns over time. Users rate it 4.6 out of 5 stars from 3,473 Amazon reviews.
This review covers how the Contour Next One works, what real users say, how it compares to competitors, and whether the discontinued meter still makes sense for new buyers in 2024. The Contour Next Gen accepts the same test strips and is now the manufacturer current recommendation.
What Is the Contour Next One Blood Glucose Meter?
The Contour Next One is a Bluetooth-enabled blood glucose monitoring system made by Ascensia Diabetes Care for people managing diabetes at home. It measures glucose in fresh capillary whole blood drawn from the fingertips. The system pairs with the free Contour Diabetes app for tracking and pattern analysis.
Here’s the thing: Ascensia designed this meter specifically for self-testing outside the body, which is called in vitro diagnostic use. It’s not intended for diagnosing diabetes or for use in newborns.
The all-in-one kit includes the meter, 20 Contour Next test strips, a MICROLET NEXT lancing device, 10 lancets, a logbook, and a carrying case. In other words, everything a new user needs arrives in one package.
How Does the Contour Next One Work?
The Contour Next One measures blood glucose by detecting an electrical current produced when glucose reacts with FAD glucose dehydrogenase (FAD-GDH) on the test strip electrode. Blood enters the strip tip through capillary action. The reaction generates electrons, and the resulting current is proportional to the glucose concentration in the sample.
To be clear, no calculation is required from the user. The meter reads the current and displays the blood glucose level within seconds. The minimum sample size is just 0.6 microliters (uL), which is quite small compared to older monitors.
Results appear within seconds after the blood sample contacts the strip. The meter operates accurately at temperatures between 5 degrees Celsius (41 degrees Fahrenheit) and 45 degrees Celsius (113 degrees Fahrenheit).
What Does the SmartLIGHT Feature Do?
The SmartLIGHT feature provides instant color-coded feedback on blood glucose results by illuminating green, amber, or red based on where the reading falls relative to the user’s target range. Green means the reading is within target. Amber signals the reading is above target. Red means it’s below target.
Think of it this way: the color system helps users make faster decisions about their diabetes care without needing to interpret numbers right away. That’s especially useful for newly diagnosed patients still learning their target ranges.
The good news? The SmartLIGHT feature can be switched off entirely if the user prefers not to use it. Target ranges are set in consultation with a healthcare professional, either through the Contour Diabetes app or directly on the meter.
What Are the Key Features of the Contour Next One?
The Contour Next One combines four core technologies that distinguish it from basic glucose meters: SmartLIGHT color feedback, Second-Chance Sampling, No Coding technology, and Bluetooth app connectivity. Together, these features simplify the testing process and reduce the risk of user error. Each one addresses a common frustration with older blood glucose monitors.
Key Features:
- SmartLIGHT color indicator (green, amber, red)
- Second-Chance Sampling to prevent wasted strips
- No Coding technology for automatic calibration
- Bluetooth connectivity with free Contour Diabetes app
- Backlit display for low-light testing
- Port light to guide strip insertion
What Is Second-Chance Sampling?
Second-Chance Sampling allows users to apply additional blood to the same test strip within 60 seconds if the initial blood sample is insufficient for a reading. This eliminates the need to insert a new strip and re-prick the finger when the first sample is too small. The feature directly reduces strip waste and the costs that come with it.
Here’s why that matters: a clinical study by Richardson et al., presented at the 20th Annual Diabetes Technology Meeting (DTM) in November 2020, confirmed that strip reapplication is both safe and accurate within the 60-second window.
By comparison, the Contour Next EZ offers only a 20-second reapplication window. The Contour Next One extends that to 60 seconds. Users get more time to add blood without retesting.
Does the Contour Next One Have No Coding Technology?
Yes. The Contour Next One uses No Coding technology that automatically calibrates the meter every time a new test strip is inserted, eliminating a manual step that historically caused user errors. Older meters required users to enter a code from the test strip vial. Miscoding was a known source of inaccurate readings with legacy devices.
In fact, the meter reads the calibration code from the strip without any user input. The process also automatically marks control solution tests when the meter detects that a control solution is being used rather than blood.
This makes the Contour Next One particularly suitable for elderly users or those with limited technical experience. The device supports 14 language options, including English and Spanish.
Does the Contour Next One Connect to an App?
Yes. The Contour Next One connects via Bluetooth to the free Contour Diabetes app, available on both Apple App Store and Google Play, which automatically syncs and logs all blood glucose readings. The app tracks trends and patterns over time. Users can share results directly with healthcare providers without manual data entry after the initial pairing.
The app identifies patterns in glucose levels, which can reveal how activities, meals, and medications affect blood sugar. Healthcare professionals can review this data during appointments for more informed treatment decisions.
Here’s what most people miss, though: PDF export of reports requires users to create an account within the app. Basic trend graphs are available without an account, but some reporting features are locked behind registration.
Is the Contour Next One Accurate?
Yes. The Contour Next One delivers accuracy within plus or minus 8.4% of lab reference values and exceeds the minimum requirements of the ISO 15197:2013 standard for blood glucose monitoring systems. ISO 15197:2013 requires that 95% of measured glucose values fall within 0.83 mmol/L (15 mg/dL) at low concentrations or within plus or minus 15% at higher concentrations. The Contour Next One surpasses both thresholds.
A clinical study by Christiansen et al., published in the Journal of Diabetes Science and Technology (2017, Volume 11, Issue 3, pages 567-573), confirmed this performance using paired sample testing against laboratory reference values.
And here’s the best part: an independent evaluation across 640 paired samples recorded a Mean Absolute Relative Difference (MARD) of 7.9%. That placed the Contour Next One second among 14 clinically evaluated blood glucose monitors. The top-ranked device, the Oxiline Gluco XS Pro, led by only 0.4 percentage points.
The ISO standard also requires that 99% of individual glucose values fall within zones A and B of the Consensus Error Grid (CEG) for type 1 diabetes. The Contour Next One meets this requirement per third-party clinical evaluation.
How Does Contour Next One Accuracy Compare to Competitors?
The Contour Next One ranks second out of 14 clinically evaluated blood glucose monitors, trailing only the Oxiline Gluco XS Pro by 0.4 percentage points in MARD, and outperforms the Accu-Chek Guide in the same evaluation. The Accu-Chek Guide scored 5 points behind the highest-rated device. Both still demonstrate strong clinical performance, to be fair.
Accuracy Comparison:
| Meter | MARD | ISO 15197:2013 | Bluetooth |
| Contour Next One | 7.9% | Exceeds | Yes |
| Accu-Chek Guide | Higher | Meets | Yes |
| Contour Next EZ | Not published | Meets | No |
| OneTouch Verio | Not published | Meets | Yes |
The Contour Next One captured 96% of induced hypoglycemic readings below 70 mg/dL (3.9 mmol/L) in clinical testing. That’s strong. But the meter has no audible alert on the device itself. Users who need sound-based low glucose alerts must rely on the smartphone app.
What Do Contour Next One Reviews Say?
Contour Next One reviews consistently highlight accuracy, ease of use, and the SmartLIGHT feature as the top reasons customers recommend the device, with the meter averaging 4.6 out of 5 stars from 3,473 verified Amazon reviews. Accuracy topics account for 22% of review discussions. Product size accounts for 18%, and SmartLIGHT specifically accounts for 8%.
An independent reviewer from MedGrade described the Contour Next One as offering ‘excellent measurement accuracy’ but flagged the coin-cell batteries and fragile plastic build as drawbacks. On CVS, the meter holds a 4.0 out of 5 stars average from 21 reviews, with 95% of reviewers saying they’d recommend it.
What Are the Positive Reviews of Contour Next One?
Positive Contour Next One reviews focus on accurate readings, compact size, fast results, and seamless app pairing, with customers describing the device as reliable for daily diabetes management over multiple years of use. Thomas, a Type 1 diabetic for 7 years, reported maintaining an A1C of 6.0% (with previous years as low as 5.7%) using Contour Next products the entire time.
RAMIRO S. called it ‘very easy to use, with a simple setup and fast, accurate readings,’ and specifically praised the companion app for automatically syncing and presenting clear trend data. BillinPA highlighted the SmartLIGHT feature as a genuine help for quick decision-making.
So what does that mean for you? Most users find the learning curve minimal. One reviewer noted the device is ‘fast, durable, and easy to pocket,’ which matters for people who test on the go throughout the day.
What Are the Common Complaints About Contour Next One?
Common Contour Next One complaints include Bluetooth pairing difficulties with certain smartphones, a fragile plastic housing that cracked in a 1-meter (3.3-foot) drop test, and the absence of PDF report export without creating an app account. Pairing problems appear more frequently with Android phones. iPhone pairing generally works without complications.
One verified CVS reviewer noted frustration that the base-level kit doesn’t include test strips. New users must purchase strips separately, which adds to upfront costs. The strips are labeled as ‘Contour Next’ test strips and are sold in separate packaging.
Bottom line: the battery situation draws consistent criticism. The meter uses two CR2032 coin-cell batteries, which typically last about nine months before replacement. That’s a recurring cost users should factor in before purchasing.
How Does Contour Next One Compare to Contour Next Gen?
The Contour Next One has been discontinued by Ascensia Diabetes Care, and the Contour Next Gen (also marketed as CONTOUR NEXT) is the current replacement model that accepts the same Contour Next test strips. Ascensia confirmed that customer support and compatible consumables remain available for existing Contour Next One users. No immediate hardware replacement is required.
The Contour Next Gen retains Second-Chance Sampling, No Coding technology, and Bluetooth connectivity with the Contour Diabetes app. The core testing experience transfers directly from one model to the other.
Here’s the kicker for current users: both meters use identical Contour Next test strips. Transitioning to the Next Gen at any point doesn’t require a new strip purchase. The cost-per-test remains the same across both models.
Is Contour Next One Better Than FreeStyle Lite?
The Contour Next One outperforms the FreeStyle Lite in accuracy, Bluetooth connectivity, and app integration, though the FreeStyle Lite remains a widely available option for users who prefer a simpler, non-connected meter. The Contour Next One’s MARD of 7.9% places it above the FreeStyle Lite in independent clinical rankings.
Feature Comparison:
| Feature | Contour Next One | FreeStyle Lite |
| Bluetooth | Yes | No |
| App Connectivity | Yes | No |
| Second-Chance Sampling | 60 seconds | No |
| SmartLIGHT | Yes | No |
| Sample Size | 0.6 uL | 0.3 uL |
| No Coding | Yes | Yes |
Worth noting: the FreeStyle Lite requires a smaller blood sample at 0.3 microliters (uL) compared to the Contour Next One’s 0.6 uL. For users with circulation issues who struggle to produce sufficient blood samples, that difference is clinically meaningful.
Is the Contour Next One Safe to Use?
Yes. The Contour Next One is an FDA-cleared in vitro diagnostic device manufactured by Ascensia Diabetes Care to ISO 15197:2013 standards. Home blood glucose testing by adults with diabetes is the intended use. The device doesn’t support Alternative Site Testing from the palm. Fingertip testing is the only approved method for this meter.
Users should consult a healthcare professional before setting or changing target ranges within the app. Any blood glucose reading below 50 mg/dL (2.8 mmol/L) requires immediate medical follow-up per the safety guidelines in the user manual.
The meter should not be used for diagnosing diabetes or for neonatal blood glucose testing. Per CDC guidelines referenced in the user manual, the device is intended for single-person use only. Sharing between individuals poses a risk of bloodborne pathogen transmission.
Who Should Avoid the Contour Next One?
People who should avoid the Contour Next One include those requiring palm-based Alternative Site Testing, users needing an audible hypoglycemia alert on the meter itself, and individuals seeking a rechargeable device with no ongoing battery costs. The meter is also not appropriate for neonatal glucose monitoring or for diagnosing diabetes.
Who Should Avoid It:
- Users who need palm (alternative site) testing capability
- Those who require on-meter audible low glucose alerts
- Users who prefer rechargeable devices over coin-cell batteries
- Those who need diabetes screening or diagnosis tools
- Multiple users sharing a single device
Users with confirmed hypoglycemia unawareness should discuss additional monitoring tools with their healthcare provider. The Contour Next One captured 96% of induced lows in clinical testing, but provides no audible meter alert. A continuous glucose monitor (CGM) may serve as a better complement in those cases.
How Much Does the Contour Next One Cost?
The Contour Next One costs approximately $37.99 USD on Amazon for the all-in-one kit that includes 20 test strips, a lancing device, and 10 lancets, representing competitive pricing relative to other Bluetooth-enabled blood glucose monitors. CVS lists the meter at between $10.99 and $20.99 USD depending on the kit configuration and current promotions. Prices vary across retail channels.
Ongoing test strip costs represent the primary recurring expense. Contour Next test strips are widely available online and in pharmacies. Users enrolled in the Contour Advantage Rewards Program receive free shipping on orders over $15 USD (approximately 14 EUR or 11 GBP) placed through the Ascensia website.
Ascensia has previously offered a free meter program for qualifying patients. The good news? Users can check the official Ascensia website for current meter request promotions. Availability varies by region and changes periodically.
Is the Contour Next One Worth the Price?
Yes. The Contour Next One delivers near-reference accuracy at a mid-range price point. The meter is one of the better value propositions among Bluetooth-enabled blood glucose monitors for adults managing diabetes at home. The 4.6 out of 5 stars rating from 3,473 Amazon reviews and the #26 ranking in Blood Glucose Monitors confirm broad, sustained user satisfaction.
The fragile plastic housing and coin-cell battery costs reduce long-term value for frequent testers. But the Second-Chance Sampling feature offsets strip waste over time. Users who previously discarded strips due to insufficient samples will save money with this meter.
Short answer: users who prioritize accuracy, app connectivity, and ease of use over premium build quality get strong value here. Those who want the absolute best accuracy plus a rechargeable design may find the Oxiline Gluco XS Pro a better fit for their needs.
Where Can You Buy the Contour Next One?
The Contour Next One is available on Amazon, CVS Pharmacy, and through the Ascensia Diabetes Care website, with the meter also stocked at major pharmacy chains and diabetes supply retailers across the United States. Amazon lists the all-in-one kit under ASIN B08FV1SVSW, ranked #22,792 in Health and Household and #26 in Blood Glucose Monitors.
CVS stocks the Contour Next One for in-store pickup and standard shipping. Ordering within 6 hours typically qualifies for next-day delivery through CVS. The Ascensia website offers the meter directly alongside the Contour Advantage Rewards Program for recurring strip orders.
Pay attention to this: the Contour Next One has been officially discontinued. Stock availability on third-party retailers may reflect existing inventory only. New customers are directed to the Contour Next Gen, which accepts the same test strips and maintains full app compatibility.
Is the Contour Next One Worth It?
The Contour Next One is worth it for adults with diabetes who want a clinically validated, Bluetooth-connected glucose meter with near-reference accuracy and smart features at a competitive mid-range price. It ranked second out of 14 clinically evaluated monitors and earned 4.6 out of 5 stars from over 3,000 verified users. The SmartLIGHT system, Second-Chance Sampling, and No Coding technology together reduce the daily burden of glucose management.
The primary drawbacks are the fragile plastic housing, coin-cell batteries, limited app features without account creation, and no audible low glucose alert on the meter. These are meaningful limitations for specific users, but not dealbreakers for the general diabetes population.
Since the Contour Next One is discontinued, buyers choosing this meter today should confirm stock availability and understand that the Contour Next Gen is the manufacturer’s current recommendation. Both meters use the same test strips, so transitioning at any point stays straightforward.