Instrument
Dark ground, one accent, numerals treated as the subject, hairline structure, and deliberate light chapters where nutrition and commercial terms live.
Readiness
It measures. It does not guess.
Recovery is left blank when there is no measured baseline to judge it against.
78%
Recovery
51
RHR
44 ms
HRV
Clinic
Warm white, soft cards, a colour per metric, reassuring voice. Close to the current live site and to most wellness products.
Your daily wellness
Feel your best, every day
Your recovery is looking great today. Keep it up.
78%
Recovery
51
Resting HR
44
HRV
Live mockups rendered in the browser, not images. Direction B was built far enough to be judged honestly and then stopped.
Side by side
Where they differ.
| A · Instrument | B · Clinic | |
|---|---|---|
| Ground | Near-black, with deliberate light chapters where nutrition lives. | Warm white throughout, cards floating on it. |
| Colour | Penng blue as the only accent. Nothing else earns a colour. | A colour per metric: green recovery, orange heart rate, blue HRV. |
| Type | TT Commons display at tight tracking, numerals set large and tabular. | Same family, looser, smaller display sizes, weight used for hierarchy. |
| Structure | Full-bleed bands separated by hairlines. Content sits on the page. | Rounded cards with soft shadows. Content sits in containers. |
| App screenshots | The app is dark. Screens sit on the ground with no frame fighting them. | Dark screenshots become dark rectangles inside white cards. |
| Hardware | Photography on black. The band reads as an object. | Photography on white. The band reads as an accessory. |
| Tone | Instrument. States what is measured and admits what is not. | Wellness. Reassuring, and quietly implies more certainty than exists. |
Recommendation
Ship Instrument.
01
The screenshots decide it
The single most persuasive asset is the app itself, and the app is dark. On a light card every screen becomes a black rectangle with a border. On a dark ground the screens simply are the page, and the food breakdown, sleep stages and training summary read at a glance.
02
Colour-coded metrics overclaim
Direction B gives every number a colour, which reads as a verdict. Penng deliberately returns nothing when it has no baseline to judge against. A green tile for recovery contradicts the most honest thing the product does.
03
The hardware needs contrast
A screenless black band on warm white is a bracelet. On near-black with a single edge of light it is an instrument, which is what it costs thirty dollars to be.
04
Nutrition still needs daylight
Committing to dark everywhere would have buried the food section, which is the part of the product that works on day one without a wearable or a baseline. So the light ground was kept, as a chapter rather than the whole book. Nutrition, the compatibility answer and the commercial terms sit in daylight, which also gives the site a rhythm rather than one uniform mood.
05
Differentiation
Direction B is what every wellness app looks like. It is safe and it is invisible. Penng's actual position, measured rather than inferred, screenless, works with the watch you already own, is not a soft-card position.
The honest caveat
What Direction B would have been better at.
It converts more easily on a first visit from a cold advertisement. Soft, bright and familiar asks less of a stranger than a black page that opens by telling you what it will not do.
It is also cheaper to maintain: light cards forgive inconsistent photography, and Penng has inconsistent photography.
The trade was accepted because Penng is not competing on first-visit warmth. It is competing on being the one product that tells you it does not know. If paid acquisition later shows Instrument losing on cold traffic, the daylight chapters already prove the light treatment works, and a light landing variant can be built without redesigning the brand.
Open decisions, evidence for every claim and the containment measures are in the review notes.
Review notes