diff --git a/src/js/controllers/walletDetails.js b/src/js/controllers/walletDetails.js
index 259ca2ff3..59799293a 100644
--- a/src/js/controllers/walletDetails.js
+++ b/src/js/controllers/walletDetails.js
@@ -47,6 +47,19 @@ angular.module('copayApp.controllers').controller('walletDetailsController', fun
     $scope.txps = lodash.sortBy(txps, 'createdOn').reverse();
   };
 
+  var analyzeUtxosDone;
+
+  var analyzeUtxos = function() {
+    if (analyzeUtxosDone) return;
+
+    feeService.getFeeLevels(function(err, levels){
+      walletService.getLowUtxos($scope.wallet, levels, function(err, resp){
+        analyzeUtxosDone = true;
+        $scope.lowUtxosWarning = resp.warning;
+      });
+    });
+  };
+
   var updateStatus = function(force) {
     $scope.updatingStatus = true;
     $scope.updateStatusError = null;
@@ -72,6 +85,8 @@ angular.module('copayApp.controllers').controller('walletDetailsController', fun
         $scope.$apply();
       });
 
+      analyzeUtxos();
+
     });
   };
 
@@ -154,10 +169,10 @@ angular.module('copayApp.controllers').controller('walletDetailsController', fun
       });
     };
 
-    feeService.getLowAmount($scope.wallet, function(err, lowAmount){
+    feeService.getFeeLevels(function(err, levels){
       walletService.getTxHistory($scope.wallet, {
         progressFn: progressFn,
-        lowAmount: lowAmount,
+        feeLevels: levels,
       }, function(err, txHistory) {
         $scope.updatingTxHistory = false;
         if (err) {
diff --git a/src/js/services/feeService.js b/src/js/services/feeService.js
index a3e554f38..1f51b046b 100644
--- a/src/js/services/feeService.js
+++ b/src/js/services/feeService.js
@@ -4,7 +4,6 @@ angular.module('copayApp.services').factory('feeService', function($log, $timeou
   var root = {};
 
   var CACHE_TIME_TS = 60; // 1 min
-  var LOW_AMOUNT_RATIO = 0.15; //Ratio low amount warning (econ fee/amount)
 
   // Constant fee options to translate
   root.feeOpts = {
@@ -83,51 +82,5 @@ angular.module('copayApp.services').factory('feeService', function($log, $timeou
   };
 
 
-  // These 2 functions were taken from
-  // https://github.com/bitpay/bitcore-wallet-service/blob/master/lib/model/txproposal.js#L243
-
-  function getEstimatedSizeForSingleInput(wallet) {
-    switch (wallet.credentials.addressType) {
-      case 'P2PKH':
-        return 147;
-      default:
-      case 'P2SH':
-        return wallet.m * 72 + wallet.n * 36 + 44;
-    }
-  };
-
-
-  function getEstimatedSize(wallet) {
-    // Note: found empirically based on all multisig P2SH inputs and within m & n allowed limits.
-    var safetyMargin = 0.02;
-
-    var overhead = 4 + 4 + 9 + 9;
-    var inputSize = getEstimatedSizeForSingleInput(wallet);
-    var outputSize = 34;
-    var nbInputs = 1; //Assume 1 input
-    var nbOutputs = 2; // Assume 2 outputs
-
-    var size = overhead + inputSize * nbInputs + outputSize * nbOutputs;
-    return parseInt((size * (1 + safetyMargin)).toFixed(0));
-  };
-
-
-  // Approx utxo amount, from which the uxto is economically redeemable  
-  root.getLowAmount = function(wallet, cb) {
-    root.getFeeLevels(function(err, levels) {
-      if (err) return cb(err);
-
-      var lowLevelRate = (lodash.find(levels[wallet.network], {
-        level: 'economy',
-      }).feePerKB / 1000).toFixed(0);
-
-      var size = getEstimatedSize(wallet);
-
-      var minFee = size * lowLevelRate;
-
-      return cb(null, parseInt(minFee / (LOW_AMOUNT_RATIO)));
-    });
-  };
-
   return root;
 });
diff --git a/src/js/services/profileService.js b/src/js/services/profileService.js
index 5f1118a1d..8c5a93662 100644
--- a/src/js/services/profileService.js
+++ b/src/js/services/profileService.js
@@ -90,8 +90,6 @@ angular.module('copayApp.services')
       wallet.m = wallet.credentials.m;
       wallet.n = wallet.credentials.n;
 
-      wallet.lowAmount = 
-
       root.updateWalletSettings(wallet);
       root.wallet[walletId] = wallet;
 
diff --git a/src/js/services/walletService.js b/src/js/services/walletService.js
index 7f53f1ce8..5e8930c82 100644
--- a/src/js/services/walletService.js
+++ b/src/js/services/walletService.js
@@ -3,6 +3,9 @@
 angular.module('copayApp.services').factory('walletService', function($log, $timeout, lodash, trezor, ledger, intelTEE, storageService, configService, rateService, uxLanguage, $filter, gettextCatalog, bwcError, $ionicPopup, fingerprintService, ongoingProcess, gettext, $rootScope, txFormatService, $ionicModal, $state, bwcService, bitcore, popupService) {
   // `wallet` is a decorated version of client.
 
+  var LOW_AMOUNT_RATIO = 0.15; //Ratio low amount warning (econ fee/amount)
+  var TOTAL_LOW_WARNING_RATIO = .15;
+
   var root = {};
 
   root.externalSource = {
@@ -401,6 +404,11 @@ angular.module('copayApp.services').factory('walletService', function($log, $tim
     var progressFn = opts.progressFn || function() {};
     var foundLimitTx = false;
 
+
+    if (opts.feeLevels) {
+      opts.lowAmount = root.getLowAmount(wallet, opts.feeLevels);
+    }
+
     var fixTxsUnit = function(txs) {
       if (!txs || !txs[0] || !txs[0].amountStr) return;
 
@@ -512,6 +520,7 @@ angular.module('copayApp.services').factory('walletService', function($log, $tim
 
         function updateLowAmount(txs) {
           if (!opts.lowAmount) return;
+
           lodash.each(txs, function(tx) {
             tx.lowAmount = tx.amount < opts.lowAmount;
           });
@@ -881,6 +890,76 @@ angular.module('copayApp.services').factory('walletService', function($log, $tim
     });
   };
 
+
+  // These 2 functions were taken from
+  // https://github.com/bitpay/bitcore-wallet-service/blob/master/lib/model/txproposal.js#L243
+
+  function getEstimatedSizeForSingleInput(wallet) {
+    switch (wallet.credentials.addressType) {
+      case 'P2PKH':
+        return 147;
+      default:
+      case 'P2SH':
+        return wallet.m * 72 + wallet.n * 36 + 44;
+    }
+  };
+
+
+  root.getEstimatedTxSize = function(wallet, nbOutputs) {
+    // Note: found empirically based on all multisig P2SH inputs and within m & n allowed limits.
+    var safetyMargin = 0.02;
+
+    var overhead = 4 + 4 + 9 + 9;
+    var inputSize = getEstimatedSizeForSingleInput(wallet);
+    var outputSize = 34;
+    var nbInputs = 1; //Assume 1 input
+    var nbOutputs = nbOutputs || 2; // Assume 2 outputs
+
+    var size = overhead + inputSize * nbInputs + outputSize * nbOutputs;
+    return parseInt((size * (1 + safetyMargin)).toFixed(0));
+  };
+
+
+  // Approx utxo amount, from which the uxto is economically redeemable  
+  root.getLowAmount = function(wallet, feeLevels, nbOutputs) {
+    var lowLevelRate = (lodash.find(feeLevels[wallet.network], {
+      level: 'normal',
+    }).feePerKB / 1000).toFixed(0);
+
+    var size = root.getEstimatedTxSize(wallet, nbOutputs);
+    var minFee = size * lowLevelRate;
+
+    return parseInt(minFee / (LOW_AMOUNT_RATIO));
+  };
+
+
+
+  root.getLowUtxos = function(wallet, levels, cb) {
+
+    wallet.getUtxos({}, function(err, resp) {
+      if (err || !resp || !resp.length) return cb();
+
+
+      var lowAmountN = root.getLowAmount(wallet, levels, resp.length + 1);
+console.log('[walletService.js.946:lowAmountN:]',lowAmountN); //TODO
+      var total = lodash.sum(resp, 'satoshis');
+console.log('[walletService.js.948:total:]',total); //TODO
+
+      var lowAmount1 = root.getLowAmount(wallet, levels);
+console.log('[walletService.js.950:lowAmount1:]',lowAmount1); //TODO
+      var lowUtxos = lodash.filter(resp, function(x) {
+        return x.satoshis < lowAmount1;
+      });
+
+      var totalLow = lodash.sum(lowUtxos, 'satoshis');
+
+      return cb(err, {
+        lowUtxos: lowUtxos,
+        warning: lowAmountN / total > TOTAL_LOW_WARNING_RATIO,
+      });
+    });
+  };
+
   root.getAddress = function(wallet, forceNew, cb) {
     storageService.getLastAddress(wallet.id, function(err, addr) {
       if (err) return cb(err);
diff --git a/www/views/tx-details.html b/www/views/tx-details.html
index cd13d7535..6ef243116 100644
--- a/www/views/tx-details.html
+++ b/www/views/tx-details.html
@@ -90,7 +90,8 @@
         </div>
         <div class="item low-fees" ng-if="btx.lowAmount">
           <i class="icon"><img src="img/icon-warning.png" width="20px"></i>
-          <span translate>This transaction amount is too small given current Bitcoin network fees. Spending these funds will incur in fees comparable to the amount itself. </span>
+          <span translate>
+This transaction amount is too small compared to current Bitcoin network fees. Spending these funds will need a Bitcoin network fee cost comparable to the funds itself. </span>
         </div>
  
         <div class="item single-line">
diff --git a/www/views/walletDetails.html b/www/views/walletDetails.html
index 93fe90f68..7b075a50c 100644
--- a/www/views/walletDetails.html
+++ b/www/views/walletDetails.html
@@ -158,6 +158,12 @@
       Wallet not backed up
     </a>
 
+
+    <a class="wallet-not-backed-up-warning" ng-if="lowUtxosWarning" ui-sref="tabs.settings.addresses({walletId:wallet.id,from: 'tabs.wallet'})" translate>
+      Spending this balance will need significant Bitcoin network fees
+    </a>
+
+
     <div class="p60b" ng-if="wallet &&  wallet.isComplete() && !walletNotRegistered" style="padding-top: 1rem;">
       <div class="oh pr m20t" ng-show="wallet.incorrectDerivation">
         <div class="text-center text-warning">