2026 slim diary
Skip itSoft demand (-67.1% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Conversion
Good6.2%search→purchase rate — share of searches ending in a sale
Review moat
Good824.95avg incumbent reviews — the moat a new listing must climb
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Bad91%top-5 brand share — brand-locked demand
Avg price
Bad£4.02avg listing price — sweet spot $15–$100
Market size
Bad£25K£25K/yr · 102K searches
Growth
Bad-67.1%90-day search growth — must beat 0% to launch
Price range
Bad£2.86–£7.98cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, 2026 slim diary is a £25K/yr Amazon United Kingdom market (102K searches/yr). The top 5 brands hold 91% of demand. Verdict: Skip it — 37/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
2026 slim diary market data
- Units sold / yr
- 4K–5K
- avg 0–100/product
- Revenue / yr
- £16K–£20K
- units × avg price
- Conversion rate
- 6.2%
- Avg BSR
- #197
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 81%
- Out of stock
- 29.3%
- Avg brand age
- 23 months
- Avg seller age
- 207 days
Competition & brand share
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.Brands
8 falling
Sellers
19
Top-5 brand share
91%
Top 20: 100%
Top-5 click share
49%
Top 20: 98%
Open market
6%
- PaulStore43%
- Orbitron20%
- PSO19%
- Sixstore5%
- Wrendale Designs4%
- Collins3%
- Open — no brand owns it (2 brands, 6%)
Demand
Weekly Amazon search volume, last 32 weeks — -67.1% search growth over the last 90 days.Top 2026 slim diary search terms
- slim diary 202634K/yr
- 2026 slim diary24K/yr
- 2026 diary slim13K/yr
- slim diary 2026 week to view15K/yr
- slimline diary 202616K/yr
Top 2026 slim diary products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
PaulStore 2027 Slim Line Week to View Padded Diary Metal Corner Case Bound Planner with Ribbon Marker (Black)
PaulStore£3.284.4★2,807 rev
PaulStore 2027 Slim Week to View Diary Vintage Floral & Typo Designer Weekly Planner with Ribbon Bookmark Agenda for Planning & Organization (Blue Floral)
PaulStore£3.094.5★743 rev
Orbitron 2026 Diary Slim Size Week to View Diaries Full Year Journal Calendar Planner (Blue Tropical)
Orbitron£3.004.6★991 rev
PSO 2026 Diary Slim Week to View Fashion soft padded hardback vintage Diary (Marble)
PSO£2.974.6★1,169 rev
Orbitron 2026 Diary Slim Size Week to View Diaries Full Year Journal Calendar Planner (Puppies)
Orbitron£3.314.6★991 rev
Newest
by launch date
Sixstore 2027 Week to View Slim Diary Soft Leather Feel 16 x 8.5cm Size Journal with Pen Black
Sixstore£4.84187 rev
Sixstore 2027 Week to View Slim Diary Soft Leather Feel 16 x 8.5cm Size Journal with Pen Blue
Sixstore£4.71187 rev
Collins - Classic - Slim 2026 12 Month Calendar Year Planner Week-To-View with Appointments Pocket Diary - Black (CAPV.99-26)
Collins£7.9825 rev
POPRUN Pocket Diary 2026 Week to View Slim (16.5x9 cm) Soft Cover Spiral Diary 26 Appointment Weekly Work Planner Card Slot 100GSM Paper (Pacific Green)
POPRUN£5.86249 rev
Wrendale Designs - Slim Diary 2026
Wrendale Designs£6.77101 rev
Trending
90-day click momentumPSO 2026 Diary Slim Week to View Fashion soft padded hardback vintage Diary (Marble)
PSO£2.974.6★
PaulStore 2026 Slim Line Week To View Diary Vintage Floral Diary Executive Design (Black)
PaulStore£3.244.5★
Collins - Classic - Slim 2026 12 Month Calendar Year Planner Week-To-View with Appointments Pocket Diary - Black (CAPV.99-26)
Collins£7.984.6★
PaulStore 2026 DIARY SLIM LINE WEEK TO VIEW WITH METAL EDGE (Blue)
PaulStore£3.384.4★
Orbitron 2026 Diary Slim Size Week to View Diaries Full Year Journal Calendar Planner (Blue Tropical)
Orbitron£3.004.6★
What buyers say about 2026 slim diary
What buyers praise and complain about, mined from review topics.What buyers love
“As described”
“Nice size”
“The diary is great quality”
“A good price”
“Useful”
“Clear well balanced events diary”
“Compact diary perfect for handbag, backpack, pocket or small spaces for keeping a track on appointments, special dates, etc”
“Equal space for each day's writing”
“Ideal size for handbag, great quality cover and paper”
“As described, nice colour”
What buyers complain about
“it had really nasty smell to it like the perfume of a 90-year-old woman this needs to be sorted”
“O. K.but hard to read days in faint print”
“looks like these are rejected diaries from there QA that have been sold cheap”
“Three and a half months missing”
“larger then expected or even quoted”
“It's ok, Pricey for what it is”
“Does not resemble description in any way”
“Colour much darker blue than illustrated”
“goes are not cut properly”
“Cheap paper diary in a plastic sleeve, no ribbon”
Top return reasons
Common questions
- Is 2026 slim diary profitable to sell on Amazon United Kingdom?
- The niche generates £25K/yr across 21 tracked products. 90-day search growth is -67.1%. Flapen's verdict: Skip it (37/100).
- How competitive is the 2026 slim diary niche?
- 8 brands and 19 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 91% of demand.
- What do buyers complain about in 2026 slim diary?
- Top complaints mined from reviews: Smell, Print Quality, Quality-Overall. The return rate is 0.3%.
- What does it cost to enter the 2026 slim diary niche?
- Listings span £2.86–£7.98; the average listing price is £4.02 (sweet spot $15–$100). The average incumbent carries 825 reviews — the moat a new listing must climb.